A staple in every single climatic battle in Dragon Ball. The stakes started to get specially high starting from King Piccolo's arc. In that fight Goku gets his left arm and both of his legs broken. Still, Goku manages to win with focusing all of his strength in his right arm. It Makes Sense in Context. And it goes upwards from there in the following arcs. The most iconic examples would be:
Goku Vs. Piccolo Jr. Being aware of that leaving Goku one healthy arm was a mistake, Piccolo now completely incapacitates Goku by breaking all of his limbs. Still, Goku manages to win by charging with his own body, using all of his remaining Ki to fly.
Gohan Vs. Cell: Gohan gets his right arm maimed while trying to save Vegeta from Cell. Still, thanks to Goku's encouragement, Gohan forms a Kamehameha with a single arm that destroys Cell.
In Berserk, after the fight with Rosine, Guts is a complete mess. That also happens to be when he runs into the Holy Iron Chain Knights. He still puts up a hell of a fight, but gets captured at the end of it. In any other condition he would have killed them all.
At the end of the fight he appears to remain unflinching as an enemy attack comes flying towards his face only to stop mere inches away. His Post-Victory Collapse reveals he probably couldn't have dodged even if he wanted to.
In the final battle, Greed tells everyone who's been injured to get off the "elevator", including Roy whose eyesight was removed as a toll for seeing the Truth. He still chooses to fight.
This trope is so overused in Saint Seiya, the heroes are brought down to this level in pretty much every story arc after facing a few mooks. This trope needs to be renamed "You Can't Even Stand" to refer to the more serious instances.
In the Sanctuary arc, Hyoga was entombed by Camus using his Freezing Coffin technique and left for dead. Shiryu broke him free with the libra sword. This left him in a semi-comatose state (but he could Barely Stand). After lampshading this trope, Camus intended to finish him off with an Aurora Excusion. Hyoga learns Camus's Aurora Excusion technique and defeats him in a Power Struggle while barely conscious.
Seiya is poisoned by by Royal Demon Roses on his way to the Pope's chamber, until all he could manage was crawl his way to the chamber. Once there, the Pope made him blind, deaf, dumb, and robbed him of his sense of smell and touch as well, then banished him to another dimension.He won anyway.
In Tengen Toppa Gurren Lagann, Simon is lifted out of his Lagann mini mecha by Lordgenome, looking bruised and almost totally defeated. However, just as Lordgenome is about to finish him off for good he summons his remaining strengh and slams the his drill pendant into his enemy's chest before twisting it and blowing him apart with the spiral energy it contains.
Early on in One Piece, Zoro had to take on a clearly inferior swordsfishman after having been nearly cut in half diagonally across the chest in a previous fight.
Even earlier in the Manga, Zoro fights Buggy's first mate Cabaji, a swordsman, after being stabbed through the side by one of Buggy's knives. Cabaji makes it a point to go after the wound repeatedly...and after repelling him, Zoro cuts the wound WIDER, just to prove he can beat Cabaji even with that handicap.
Also Zoro — the post-Oz Kuma encounter when he is so injured he can't stand, and yet uses Kuma's magic paw-bubble to take all of Luffy's damage too, and the post-Kuma multi-Kuma fight where his injuries from the Kuma encounter make him collapse, whereupon he gets up again to use his most powerful technique, whereupon he is struck with a light beam/laser thing, whereupon he gets up again to face down Kuma (who is surprised that he survived that first encounter) whereupon he is vanished away to Nightmare Before Christmas-land. Where, upon waking, he tries to get up again but luckily has been semi-mummified by Perona.
Every single fight in Bleach, notably during the Soul Society Arc. Subverted twice in the Hueco Mundo arc when Grimmjow encounters Ichigo barely able to stand, and has Orihime heal him; and Nnoitra beats the hell out of an already-almost-dead Ichigo.
Lampshaded when Ichigo gets a nasty cut as usual during said fight — except this time his torso is sliced almost in half. On the topic of standing, his opponent gleefully informs him, "It isn't a matter of willpower; it's a structural impossibility." Ouch.
Every Bleach reader already knows that everything in Bleach depends entirely on Rule of Cool. Usually this means Ichigo takes a ton of injuries and then pulls something super crazy awesome out of nowhere and defeats his opponent. Then again, that's just about every shonen ever.
Uryu, on the other hand, has a technique that overcomes "structural impossibility" by turning his own body into what amounts to a telekinetically-controlled puppet. This allows him to keep fighting even after his body is paralyzed by a poison that shuts down all voluntary muscle movement.
In Wolf's Rain, Toboe tries to bite Darcia's arm off despite being seriously wounded and dying from it shortly afterward.
In Rurouni Kenshin, the final battle between Kenshin and Shishio is like this, and Kenshin actually does collapse during the fight before getting back up.
Applies to his allies in the fight as well, as they've all been through serious fights to get there. Saitou has had his thighs slashed (and spends most of the fight after his contribution on his knees) and Aoshi took Kenshin's ultimate attack ten minutes before he got there. Saitou and Aoshi are implied to be able to stand a serious chance against Shishio in a fair fight, but injured as they are all they can do is buy Kenshin time to get up again.
Also in the anime when he fights Shura, Kenshin is hit by a poisoned dart and can't exactly see properly or stand up straight.
Happens a lot to Allen Walker in D.Gray-Man. Sometimes it works (For example, when he literally can't stand during the Level 4 attack and keeps fighting it anyway by dragging himself around with Crown Clown) and sometimes it... doesn't (Like after the whole mess with Suman Dark, when Tyki effortlessly dissolves his arm and puts a hole in his heart).
Gintama has its main character Gintoki have several moments like this when there's serious arc and he's so badly beaten he can barely stand. Yet somehow, he always gets up from the ground. Never mind the countless broken bones and him throwing up blood...
Inuyasha (to Sesshoumaru): 'You just stay back! This isn't the place for an injured person!'
The various Egrigori experiments in Project ARMS get this bad. Ryo has especially bad luck. His ARMS - the Jabberwock - will only come out if he is in serious danger. The result of this is that almost every enemy sent to kill the Jaberwock will try to make it come out by beating the stuffing out of Ryo. And since he hates the Jabberwock, he always puts in a great deal of effort to just let himself get pummeled and not release the ARMS.
Sword of the Stranger invokes this during its famed final fight sequence. Nanashi, after already being completely spent fighting the other soldiers and sustaining a few fairly series injuries, not only stands up to Luo-Lang, but refuses his offer of performance-enhancing drugs that would dull his pain and still ends up the victor in the end.
Fate/stay night Unlimited Bladeworks. Lancer's Crowning Moment Of Awesome is basically him taking out a major villain and a minor one, both non-heroic spirits, while suffering one such wound. That wound is being stabbed through the heart with his own magic spear. His response? "As if I would die from a wound like this." We must emphasize this wound is through the heart. With a spear that causes wounds that cannot be healed.
And appropriately enough in the scene happening parallel to that one, we have Shirou. During the course of his fight he's broken his fingers, gotten covered in cuts, has various other broken appendages, and is all but dead due to being outmatched. Quite literally the only thing keeping him swinging is a full on Determinator mode.
Touma in A Certain Magical Index was like this during his first fight against Accelerator. the funny part? it was Misaka, the one who he was helping, that put him in that state.
Naruto has the battle between Jiraiya and Pein. After it looked like he had won, Jiraiya was ambushed by the rest of Pein's six paths, including the ones he had just killed. Worn out by using his sage mode, Jiraiya has no chance in hell of defending himself and all six bodies impale him with their swords. When he still gets back up, one of the paths goes to finish him off and slits his throat, at this point he's dying so quickly he invokes the trope almost verbatim. He still doesn't want to die however, so he makes a Massive Rasengan and destroys the path that slit his throat so thoroughly that it has no chance of revival. The force of this knocks Jiraiya back into the water, where he succumbs to his wounds and dies smiling after reflecting on his life.
Star Blazers / Space Battleship Yamato: In the final confrontation between Wildstar and Desslok, Wildstar is bleeding badly and can barely stand—and he does, in fact, collapse as his legs give out under him. Nova rushes to Wildstar's side, and as Desslok stands over them with his gun, both of them finally at his mercy, he realizes that Wildstar has fought him with everything he had simply to protect his home and his loved ones, and Desslok realizes he's come to respect his enemy too much to pull the trigger. He declares an end to their conflict, and leaves in peace.
Superman gets to do this a lot, including fighting weakened by a red sun and having just come out of a coma, or just having been stabbed with Kryptonite.
Done with somewhat different implications in the animated series finale "Legacy," where a depowered Superman lets out his anger on Lex Luthor, shattering the latter's jaw in one punch.
Reminding us all that even without superpowers, Clark Kent is still a big man who gets very intense workouts on a regular basis.
Really more of an inversion. He can cut loose because he doesn't have to worry about accidentally killing Lex. This happened in Smallville too.
Subverted in one instance in the comics (fighting a makeshift squad of villains). He's very ill, but still very strong. The conflict is that, as he says to the villains, he is so sick he has no idea if his punches will remove heads from necks.
Spider-Man fought The Black Widow in one issue. He had a case of pneumonia that would have put an ordinary man into the hospital, but it just slowed and weakened him down enough that the Black Widow thought he been toying with her when he broke free of her swing line at the end of the fight.
In ElfQuest, Cutter refuses to be healed during the first battle with the Northern Trolls because it would take him out of the fighting for too long, and his tribe needed every fighter they had.
A non-combat version from Sandman: an unnamed country punishes criminals by hanging. The big cities always have enough people willing to become professional hangmen, but in smaller towns, people aren't willing to face the social stigma. So what the small towns do is choose a condemned prisoner who's unlikely to be too much trouble and offer to suspend his sentence if he'll act as hangman. That "suspend" is key; if the prisoner isn't hanged sooner or later, the town loses their right to have a hangman. One character accepts the offer, but as natural death approaches, he decides that he'd really prefer to die in his own bed. When the enforcers arrive, he's standing to meet them, although he was too ill to move, let alone stand, a mere panel or two before. Once the enforcers leave, we find that the character was supported by one of his own hangman's ropes, strung to a roof beam.
In the Firefly fanfic Forward story "Business," River and Jayne are in this state when they fight the Hands of Blue at the climax. This is because they had been captured and tortured by Niska previously, and had only just escaped that. In this case, Jayne actually proves to be the better fighter, if only because, being larger, stronger, and tougher, he was able to withstand the torture better than the much physically weaker River, who was reduced to a gibbering wreck following the ordeal and was so battered that she needed Jayne to carry her on his back. River is only able to fight because Jayne injects her with a syringe of synthetic adrenaline.
In the Daredevil film, Daredevil goes to the climactic fight with Kingpin while still seriously injured from his fight with Kingpin's Dragon, Bullseye. Kingpin proceeds to own him in seconds, and even gloats about wishing he could fight Daredevil "in his prime".
In Gladiator, Commodus stabs Maximus in the lung just before their climactic battle in the colosseum. Maximus, a seasoned general mind you, proves to be able to defeat the reasonably skilled but nonetheless inferior Commodus, but dies from the wound afterwards.
Sin City gives us a gem, when Detective Hartigan, an aging cop with a heart condition, staggers over to confront the Big Bad of his arc.
Roark Jr.: Look at you, you can't even lift that cannon you carry!
Hatigan: ...Sure I can.
In the conclusion of Kick-Ass, Hit-Girl does this again and again, finally seeming to meet her match in the mob boss D'Amico. When she can't pull out one more Heroic Second Wind (give her credit, she'd already done that about five times) she's rescued by Kick-Ass.
At the end of Mission: Impossible III, Davian activates a mini-bomb implanted inside Ethan Hunt's skull before attacking him. With the enormous pain of the activated bomb inside his head, Ethan is significantly crippled during the ensuing fight, which compensates for Davian's lack of formal combat training, at least to the level of an IMF agent.
In the fourth book of The Sword of Truth, Richard defeats his evil brother, despite being barely able to stand due to a disease, and the brother wielding the titular sword. A couple minutes later, that brother tries to kill Richard, despite having his spine ripped out.
In Robert A. Heinlein's short story "The Long Watch", the hero Lieutenant John Dahlquist barricades himself in an Interplanetary Patrol nuclear weapons bay on the Moon, while dying from the radiation dose he's getting from impromptu hammer-sabotage of a bunch of nuclear warheads sought by Colonel Towers, the leader of an attempted coup. It's sort of a You Can Barely Stand-off.
Vimes in Thud! fights off a small army of dwarfs while badly beaten from a fall, cold and wet, and highly disorientated. However this is (probably) because of the Summoning Dark trying to control him. Where he really shows his Heroic Resolve is that, once he's run out of armed opponents, he stops.
Harry Dresden. In nearly every book. In Fool Moon he basically uses up his magic— and that's before he even has a chance to confront the pack of werewolves he came to fight.
Played with in Turn Coat: While it's really obvious that he can barely stand (numerous bandages, about to fall over from lack of sleep, and what have you) and he's hopelessly outnumbered, none of the other Wardens want to attack him because they've all heard aboutthe crazy crap he's pulled when he's running on nothing but sheer bloodymindedness.
Subverted in Changes, where the traditional early book injury is his back being broken, leaving him completely unable to fight or even move his legs. He accepts Mab's offer to be the Winter Knight, and for once goes into the fight not just fresh but stronger than he was when the book started.
The RPG rulebook lampshades it. Harry asks why all the pictures of him show him beat to crap. Billy says it's because they're pictures of him on the case, and when he's on a case he's usually beat to crap. A little later on, Harry singles out one picture from a case file where he's not all beat up—only for Billy to point out it's from early in the case, and there's already a visible bruise on Harry's face.
Old literary example: In Ivanhoe, the title character Wilfred of Ivanhoe meets Sir Brian de Bois-Guilbert as challenger in a trial by combat despite barely being able to maintain his seat in the saddle due to severe wounds from a tournament earlier. Then Bois-Guilbert has a stroke and falls dead despite not even being touched by Ivanhoe's lance. This is of course taken as a sign from God.
In Harry Potter and the Half-Blood Prince, Death-eaters are able to attack Hogwarts only because Dumbledore is severely weakened— likewise he is also able to be killed by Snape for this reason
Although in Deathly Hallows, it's revealed that this killing arranged by Dumbledore and Snape themselves, it still was only believable because Dumbledore was in a severely-weakened state).
Northern Lights: Lyra sets up a fight-to-the-death between Iorek Byrnison and the usurper of the throne of the Armored Bears, Iofur, in a last ditch effort to help Iorek, only to realize later that Iorek, after a battle with cliff-ghasts and days of journeying through the tundra with no food and rest, will not be in the best condition to fight. The alethiometer eventually gets tired of telling her she has nothing to worry about.
In the Star Wars novel Shatterpoint, Mace Windhu has operated with little sleep for several days, gone through at least three separate battles that day, and been stabbed in the stomach with a lightsaber, and finds himself wobbling on his feet as he faces a man twice his size and much more powerful in the Force, who already beat him senseless once. it turns out the enemy's vibroblade weapons cut straight through each other, and a dead elite mook happened to leave one where Mace could force-throw it. The fight lasts maybe two seconds.
In the Dale Brown novel Flight of the Old Dog, the titular Airstrike Impossiblestarts with the titular Cool Plane already damaged from a takeoff under enemy fire, with its operators not at 100% due to needs must, and gets into steadily worse straits along the way, including damaged/malfunctioning engines, compromised fuel tanks and failing sensors.
Honor Harrington does this in Flag in Exile where after the best part of three days of awake activity, being shot out of the sky, having a bomb go off next to her, and being in a life-or death duel, she still has to fight her ship. Good thing she sits in her command chair.
Also an example: that duel itself. She was already a wreck when she staggered into the Parliament session to denounce the Big Bad in front of everybody, and then he tried to outfox her by demanding a duel when she was clearly in no state to fight. He was one of the most accomplished duelers on the planet, and she had never so much as picked up a sword until she came to Grayson. She killed him in one stroke.
In the Dragonlance series, Raistlin Majere is a rare case of the villain suffering from this. Suffering from the most severe Incurable Cough of Death in all of fiction because of his Test, Raistlin is almost constantly on the verge of keeling over or being blown away by a stiff breeze. Even Crysania, when she opposed him at first, sees him as a pitiable figure. And when Caramon confronts him in the Abyss, Raistlin had been burnt, stabbed, frozen, sheared and skewered to within an inch of his life, and yet Caramon still holds back. Not only because of lingering brotherly concern, but because even then Raistlin is still dangerous. 98% of his magic had been expended, but that last 2% was still enough to be worried about, not to mention his dagger of last resort that he had no compunctions to using.
During the climactic battle in The Unexpected Enlightenment of Rachel Griffin, Dean Moth fights a dragon offstage. When the protagonists do arrive on the scene some four chapters later, the duel is still going on and the dean is only standing upright because she's tied herself to a tree.
Live Action TV
When Angel loses his soul for the umpteenth time, his sidekick calls in fallen Slayer Faith to hunt him down. This might have been a short fight, since Angel has a long record of getting soundly beaten every time he fights a Slayer (Faith herself managed to bounce him off the ceiling while attempting Suicide by Cop) so before the big fight she gets beaten to a bloody pulp by The Juggernaut. Oh, and gives herself a massive dose of magical opiates. She still nearly beats him, because Slayers are just that Bad Ass.
Played straight in the original Battlestar Galactica series episode "Lost Planet of the Gods" two-parter.
Lt. Boomer: Colonel, Blue Squadron reporting for duty, sir.
Col. Tigh: Lieutenant, obviously you can't even stand.
Lt. Boomer: A Viper is flown from the seated position, sir.
Booth on Bones, in "Two Bodies In The Lab", after he's injured by the fridge bomb. He leaves the hospital against medical advice and makes Hodgins take him to where he realizes Brennan is being held. He can barely stay on his feet, but manages to stop the corrupt FBI agent and save Brennan. After which, he has to go back to the hospital.
Very common in Professional Wrestling: the heel weakens the face before the big title match by getting his friends to beat him up, or forcing the face to have another match just before the title match, usually a handicap match, hardcore match or another grueling type. (This is referred to as the "Spirit of '76" spot, when the bandaged and battered face comes staggering out for the match anyway.)
More commonly used now since the advent of the Money In The Bank match, which gives the winner the right to challenge the champion at any time, even right after a grueling title match where the title holder has been beaten brutally. Use of it this way often starts a Face-Heel Turn for the wrestler who wins the title this way.
One does wonder about people like Commissar Yarrick in Warhammer 40,000, who have special abilities that allow them to stand up with one Wound left after being killed.
Link gets a moment like this near the end of The Legend of Zelda: The Wind Waker. After Link meets up with Ganondorf for his last battle, the Gerudo rushes over and beats the stuffing out of Link. Thankfully, Zelda awakes, and the fight soon commences. Then, at the end of his sword-to-swordfight with Ganondorf and some assistance from Zelda, Link sends the Master Sword through Ganondorf's head, jumps back, and proceeds to bend over and collapse into the approaching Zelda's arms. But after a fight like that, who wouldn't be tired?
Call of Duty 4: Modern Warfare ends with your character taking multiple air-to-surface missiles to the face, leaving you in a half-unconscious state as the Big Bad walks over and starts gunning down your squadmates one by one. Your dying captain tosses you his sidearm, and the game's final action is a blurry slow-motion sequence where you shoot down the Big Bad and his two bodyguards before they can react and kill you.
Modern Warfare 2's climax has you falling off a few hundred foot high waterfall after shooting down the Big Bad's helicopter. You recover, limping and badly injured, just in time for a hand-to-hand CQC fight with the Big Bad who is in much better condition following the crash.
Modern Warfare 3's ending has you storm a gigantic Hotel highrise chasing after Makarov. As per usual in the Modern Warfare series you lose your weaponry (due to almost falling off the building), are critically injured (due to hijacking the escape helicopter but crashing it), and have to kill the Big Bad with basic weaponry (except this time you have to do it with your bare hands!)
The final mission in Project Snowblind disables all the cool nanotech powers your character spent the game building up... but you're still left with standard FPS character Made of Iron durability, and there aren't many enemies in the last level anyway.
Metal Gear Solid 4: after dealing with a bad heart/rebellious nanomachines, crawling through a hallway full of microwave radiation, and barely surviving a final assault by a bunch of mini-bots, Snake is captured by Liquid Ocelot, who challenges him to one last fight to the death. To ensure that it will be a fair match, Liquid injects Snake with some awesome drug, then, as they Cutscene Power to the Max, they continue to inject themselves with more and more of the drug, until despite their advanced ages, they are able to fight as if they were in their prime. This quickly devolves, however, to a You Can Barely Stand battle, as, at the end, the drug wears out, and it goes from two accomplished hand-to-hand combatants duking it out to two old men savagely slugging each other with whatever power they can muster. Note that Ocelot has a good 4 life bars, one for each game in the solid series, in different styles!
Amusingly used in Disgaea. A villain springs one of Larharl's weaknesses, forcing you to go into a fight with his stats halved. That weakness? Giant breasts.
Inverted in Golden Sun. 4 teenagers face the powerful villain Saturos in Mercury Lighthouse. Normally they would be no match for him, but the Mercury (Water) energy drastically weakens Saturos's Mars (Fire) Psynergy and gives Mia, who is a Mercury Adept, Psy Point regeneration. Still a somewhat challenging boss fight.
Later in the game, at Venus Lighthouse, you fight Saturos and his partner Menardi to prevent them from lighting the lighthouse. Due to your massive increase in strength since the previous fight at Mercury, you defeat them with (relative) ease. After the fight, Mia actually says outright, "You can barely stand," in response to a comment from the injured Saturos. Cue Mia eating her words, dragon style. This trope, but with the roles reversed.
The sequel Lost Age also has two incidents of this trope After the fight with replacement baddies Agatio and Karst atop the Jupiter Lighthouse. Regardless of how the fight goes, they're forced to make a hasty retreat because the fight with Felix and Co. took to much out of them, and the heroes from the last game are on their way up. Once the villains leave, Issac and co. arrive a tense standoff ensues between the two teams (long story). Ivan defuses the situation by suggesting they return to the local village to resolve things, as both teams are too tired to fight.
By the time the last fight in video game Def Jam: Fight for New York comes around, your character has done the Charles Atlas Superpower power-ups for so long he has become a virtually Made of Iron fighting machine, so fighting the cowardly Manipulative BastardBad Boss who has never shown any sign of having any fighting ability seems like it should be pretty anti-climactic... except that he stabs you in the back with a cane sword before the bout begins, significantly lowering your health.
And Crow isn't exactly a lightweight in the ring, either. (figuratively speaking; It is still Snoop Dog.)
This happens in the fight with Incarose in Tales of Hearts, when other characters tell Shing to step down because of his recent state of being stabbed through the stomach. The weird thing is, you can't even put him in your party that fight. The lines are only known about because of the Sound Museum, although hacking him in does trigger the lines and even the victory animation.
At the end of Sleeping Dogs the player is seriously injured in a massive explosion just before confronting the Big Bad. As a result, in the final fight you're too injured to attack, and can only fight by countering.
In the final sequence of Assassin's Creed III, Connor is severely injured and unable to fight; his opponent, however, is equally injured and so the two enemies are reduced to staring at each other across a tavern table.
Gilgamesh Wulfenbach in Girl Genius, here. Near passing out at the start of the fight.
In Worm, Chevalier, leader of the Protectorate, is hospitalized after an assassination attempt that involved carving out his guts with a high-intensity cutting laser. Having just undergone major surgery to stabilize him, Chevalier awakens to find that in his absence the defense against Behemoth has gone poorly, with the city of New Delhi almost destroyed and most of the defending superheroes injured or dead. After getting some information on Behemoth's weaknesses from Tattletale, Chevalier grabs his sword, limps out of the hospital, charges Behemoth-a forty-five foot tall horned abomination that can instantly kill anything within thirty meters-and then hurts him badly enough to make him run.
In the very-first episode of Thundercats, the Mutants invade the Thundarian flagship, seeking to steal the Sword of Omens, and particularly the Eye Of Thundara set in its hilt. When they find it, it lies in the hands of a young Lion-O, and when he tries to threaten them, they laughingly reply that "You can barely hold that sword, much less lift it." Which is, of course, the sword's cue to start glowing. Moments later, Lion-O is swinging the full-sized sword around despite his young age, and the Mutants are running scared.
Real life sports example: Curt Schilling in the 2004 World Series.
There's a lot of examples from sports beyond that. Kirk Gibson was a lot closer to being crippled when he hit the game winning homerun off Dennis Eckersley in the '88 World Series. Steve Yzerman helped the Red Wings win the early series in the 2002 NHL playoffs despite having virtually no knee cartilage left. And Willis Reed famously started Game 7 of the 1970 NBA Finals despite a torn muscle in his thigh, which is often credited with helping rally the Knicks to victory.
Gerry Byrne was an English soccer player famous for remaining in goal during the 1966 FA Cup Final despite having a broken collar bone.
Another British soccer player Bert Trautmann, broke his neck in a collision in the 75th minute of the 1956 FA Cup Final. No substitutes were permitted back then, so he carried on for the remaining fifteen minutes, and even intercepted a shot. Hard bastards, these football players.
This sort of thing is popular in sports, where people doped up on adrenaline, cortisone shots, or even just Advil and, naturally, are still competitive and don't want to abandon teammates. Even more so in contact sports like American football, rugby, and hockey, and sports where legs get tangled up frequently, like soccer and basketball.
QB Ben Roethlisberger played against the Green Bay Packers in the Super Bowl with a broken foot and nose.
In college, QB Byron Leftwich played with a broken leg, eventually needing his linemen to carry him down the field after successful passes.
Tiger Woods won the 2008 US Open through four 18 holes rounds, an 18 hole playoff, and 1 sudden death playoff hole after still being tied with Rocco Mediate after 90 holes. He did all of this with a torn ACL and double spiral fracture in his shin, which caused him to exhibit some serious trouble walking at times. Both injuries were in his left leg, which is the leg that for a righty like him absorbs a lot of torque during the downswing and follow through.
Michael Jordan played Game 5 of the 1997 NBA Finals with what was either the flu or food poisoning. Whatever the exact ailment, he could barely move the morning of the game, dragged himself out of bed at 5:30 PM that evening, an hour and a half before tip off, played 44 minutes, scored 38 points in a very close game, before needing his teammate, Scottie Pippen, to basically carry him off of the court after the final buzzer.
Real life music example: Yoshiki in the March 28, 2008 X Japan reunion concert. He tries to play the full set of the show that he played 11 years before, despite years away from drumming in concerts and serious injuries to his neck and back from his career as a drummer. He collapsed on his drums halfway through the last song Art of Life. He would have major neck surgery the next year in a successful bid to save his ability to play drums (and a somewhat less successful one to spare his health), and recovered to do another two tours - which were also examples of this trope, though he had no on-stage collapses, due to ongoing health issues. Nevertheless, he's planning yet another tour...
In the 2012 Australian Open tennis final, Novak Djokovic and Rafael Nadal played such a grueling and merciless match that completely obliterated the former record for longest Grand Slam final with a length of six hours that Djokovic's dramatic collapse to the floor after a 31-ball rally in the fifth set looked like more than just his usual theatrics. To top it off, the match left both Djokovic and Nadal so physically drained afterwards that they visibly struggled to stay upright during the lengthy closing speech with Nadal having to lean on the net for support and Djokovic all but on his knees before chairs were brought out for them.
At the 1996 Olympics, U.S. gymnast Kerri Strug performed her second vault attempt with a third-degree lateral sprain and tendon damage in one ankle. She landed on both feet, but stood on one foot while saluting the judges. After receiving a score of 9.712 (clinching the gold medal for her team), she collapsed to the mat and had to be carried to the medals podium.