Arch Enemy / Sports

American Football
  • The Denver Broncos and Oakland Raiders in the NFL. When they play, there will be fights (in the stands, at any rate).
    • The Raiders are hated enemies with every team in the AFC West (Broncos, Chiefs, and Chargers, but especially the former two).
  • On the NFC side, the Green Bay Packers and Chicago Bears have a long history (their first game was in 1921 and the two teams have played each other the most times out of any pair of NFL teams).
  • The San Francisco 49ers and Dallas Cowboys have waged war for NFC supremacy for years. They have met in the playoffs seven times, with the victor usually going on to the Super Bowl.
  • On a higher level, the Dallas Cowboys and Pittsburgh Steelers have met in the Super Bowl three times; the most Super Bowl match-ups of any pair of teams.
  • The Ravens, Bengals, and Browns don't like each other in the AFC North division, but there is always one single team is their sworn archenemy: The Pittsburgh Steelers. Ask any fan of those teams who is their biggest rival and they will always say the Steelers.

Association Football
  • Celtic and Rangers in Scottish football.
  • Manchester City fans, as a rule, detest Manchester United. The feeling may not be reciprocated, as United supporters may see Liverpool or Arsenal as their arch-rivals (due to City's not winning anything for 42 years). This has changed in recent years.
  • Liverpool and Manchester United fans enjoy a bitter rivalry, due to proximity and being the two most successful teams in English football history. Liverpool also have Everton, cross-town rivals, but this is more of a family feud, quite literally, in some cases - legendary Liverpool defender Jamie Carragher grew up supporting Everton and it's quite common for close family members to support the opposing team.
  • Ajax Amsterdam and Feyenoord in the Dutch football league.
  • Greek football has Panathinaikos-Olympiacos Piraeus. You know this rivalry qualifies when it is known as "The Derby of the Eternal Enemies."
  • Germany has Borussia Dortmund vs FC Schalke 04, known as the Revierderby (Ruhr Derby).
  • Italy has Lazio-Roma and Milan-Inter.
  • Portuguese football has a three-way arch-rivalry, with Porto, Benfica and Sporting Lisbon fans all detesting each other.
  • Spanish football has many rivalries, but none come close to the Real Madrid-Barcelona rivalry known as el clasico.
  • Turkish Football has Galatasaray and Fenerbahce, and to a lesser extent, Besiktas.
  • In Brazil, not only inter-city teams are arch enemies, but some manage to cross state borders as well. A lot of contested important games between Atlético-MG and Flamengo (the country's most popular team) made the former hate the latter as much as city rival Cruzeiro.

Australian Rules Football
  • The Carlton Blues, Collingwood Magpies and Essendon Bombers have a three-way rivalry, although if push comes to shove Carlton and Essendon fans will usually suppourt each other against Collingwood.
  • The Adelaide Crows and the Port Adelaide Power
  • The Geelong Cats and the Hawthorn Hawks

  • The Los Angeles Dodgers and San Francisco Giants have been arch rivals since the 1800s, from their days in New York, all the way across the coast when they both moved to California.
  • The New York Yankees and Boston Red Sox, the American League's, and possibly Major League Baseball's most bitter rivalry.
  • Completing the trinity of big baseball rivalries is the Chicago Cubs vs. St. Louis Cardinals. This due to their long history (both teams date to the late 19th Century), close proximity, and the fact that Cardinals are one of the most successful teams in history (19 NL pennants and 11 World Series Championships, second in MLB to the Yankees) and the Cubs are...not.
  • The Minnesota Twins had a longstanding rivalry with the Milwaukee Brewers until the latter team was moved into the National League in 1998. These days the feud is between the Twins and the Chicago White Sox (spoiled somewhat by the fact that the two teams tend to be uneven - in years the Twins are very good the Sox tend to be very bad and vice-versa).
    • In the late 1980s-early 1990s the Twins and the Oakland Athletics had a fierce rivalry going as well - both teams were young, scrappy, and dominant in the AL West.

  • In basketball, there really is no better rivalry than that between the Lakers and Celtics. This one is born out of success, as opposed to any local enmity - between 1959 and 1969 they played each other seven times for the NBA title (the Celtics won all of them), and then it revived in the mid-to-late 1980's with Magic Johnson and Larry Bird with Finals meetings in 1984, 1985, and 1987 (the Celtics won in '84, the Lakers the other two times).
  • The Miami Heat, Chicago Bulls and New York Knicks have a three-way rivalry.
  • The New York Liberty and Detroit Shock were very intense WNBA rivals, until the latter was sold and moved to Tulsa.note 
  • The Detroit Pistons and Los Angeles Lakers, Bill Laimbeer and Rick Mahorn in particular. When they were reunited as WNBA coaches on opposite sides, their egos got in the way, and both teams got into a fight.
  • The New York Knicks and Indiana Pacers. Reggie Miller, one of Indiana's most well-known players, even compared it to the legendary Hatfield–McCoy feud.

  • Muhammad Ali and Joe Frazier. Three fights, with Frazier winning the first, and Ali the second, before the bitterly contested Thrilla in Manila which Frazier always insisted he could have won had the referees allowed the bout to continue. During their rivalry, and for years afterwards, the well-spoken flashy Ali would belittle and mock the completely uneducated Frazier, who was largely unable to defend himself, and in turn became ever more bitter, openly gloating over Ali's development of Parkinson's. The two did eventually reconcile before Frazier's death, with Ali attending his funeral and displaying an appropriate respect.

  • The biggest, fiercest rivalry within cricket by far is between India and Pakistan.
  • The Ashes (England vs. Australia) is also Serious Business, especially due to the 100+ year history of the rivalry.

Ice Hockey
  • The Montreal Canadiens have not one, but two: the Boston Bruins and the Toronto Maple Leafs. For a while, the Habs had three archenemies. In addition to their enmity with the Bruins and the Leafs, the Canadiens also had an ugly relationship with the Quebec Nordiques, who played in the provincial capital of Quebec City. This seems to have died down after the Nordiques moved to Colorado and became the Avalanche, though.
  • The Leafs have another rival similar to Habs-Nordiques, the Ottawa Senators.
  • The New York Rangers serve as the Arch-Enemy to both teams from the NY Metropolitan Area, the New York Islanders (a playoff match in the 70s still results in Rangers fans screaming "Potvin Sucks!") and the New Jersey Devils (who shout "Rangers suck!" at every home game without fail).
  • The Battle of Alberta is a result of the fierce rivarly of divisional, and provincial, rivals of the Edmonton Oilers and Calgary Flames.
  • NCAA hockey brings us the Battle of Commonwealth Avenue: Boston University vs Boston College, which stretches all the way back to BU's first hockey game ever on February 6, 1918. It doesn't help that the two schools are within 5 miles of each other and only a couple stops away on the Green Line.

  • 24 Hours of Le Mans has lots of arch enemies, especially among cars.
    • The Jaguar D-Type is this to Mercedes-Benz 300SLR in The '50s. The infamous Le Mans Disaster didn't stop Jaguar from winning the race even though Mercedes-Benz had won the World Sportscar Championship season.
    • Ford GT40 is this to Ferrari P series as well in The '60s.
    • Many Group C cars, like Porsche 962 and Mazda 787B, are this to each other.
    • In the 2000s, it's Audi against Peugeot.
    • Now, it's Audi and Porsche against Toyota, due to fact Porsche and Audi are now under full Volkswagen ownership. So this makes Volkswagen Group against Toyota in WEC races as well as car sales.
  • World Rally Championship has a few too.
    • Mitsubishi Lancer and Subaru Impreza were this in The '90s. This also caused Fandom Rivalry in car enthusiast community with homologated performance sedans, Lancer Evolution and Impreza WRX STI.
    • In the 2000s, it's Ford against several European manufacturers.
    • In The '80s, we have French makers competing each other.
  • Ferrari is this to other teams in Formula One.
    • Since 2000s, it's Mercedes against pretty much anyone else.
  • Ford vs Holden in Australia's V8 Supercars, which spills over to a Fandom Rivalry for non-racing cars - the mantra goes "Win on Sunday, sell on Monday."
  • Moto GP also has a lot of arch-enemies.
    • Italian manufacturers are this to each other in the The '50s.
    • Since The '70s, we have (mostly) Japanese makers competing against each other.
      • In The '70s, Suzuki and Yamaha are this to each other.
      • The '80s saw Honda joining the fight.
      • Since the current Moto GP is formed in 2002, it's Honda against Yamaha, with Ducati sometimes joining the fray.
    • For the driver arch-enemies:
      • Barry Sheene against Kenny Roberts Sr. in The '70s.
      • The '80s to the early The '90s saw the battle between Americans Wayne Rainey & Kevin Schwantz, with Australian Wayne Gardner & fellow American Eddie Lawson joining the fray.
      • The '90s saw Mick Doohan against Alex Criville.
      • From the 2000s to now saw battles of Valentino Rossi between pretty much most of the top drivers, most notably Max Biaggi, Sete Gibernau, Casey Stoner, Jorge Lorenzo, & Marc Marquez.

Rugby League
  • The New South Wales vs Queensland State Of Origin matches, the second biggest event on the Rugby League calendar after the Grand Final.

  • Any Chicago and Detroit teams - Blackhawks fans in particular shout "Detroit sucks!" in every game, not only those against the Red Wings.
  • New York teams in all sports have fierce rivalries with teams from Boston and Philadelphia.
  • College arch-rivalries in general tend to be multi-sport and intra-state - many US states have multiple flagship universities with different backgrounds (e.g., one's focused on liberal arts and one's an engineering institution like Georgia-Georgia Tech, one's historically religious and one's secular like Brigham Young-Utah, one's public and one's private like Cal (Berkeley)-Stanford, two competing political and social groups with a vicious history of trying to run the other out of town like Alabama-Auburn, etc.)
    • Michigan State University's football and basketball teams, both called the Spartans, are each this to their University of Michigan counterparts, both called the Wolverines, and the feeling is mutual.
    • Duke vs. UNC. One of the biggest rivalry in college sports (especially men's basketball).
    • Michigan-Ohio State: This one stretches back to a border dispute in days when Michigan wasn't even a state yet (Ohio won, Michigan got the Upper Peninsula as a consolation prize). ESPN once ran an ad showing a boyfriend-girlfriend couple kissing each other while they each wore a sweatshirt with the two universities' logos. The tagline: "If it weren't for sports, this wouldn't be disgusting."