Orochi Doppo attacking Mohammed Ali Jr after he’s already injured from his bout with Jack makes him come across as a Sore Loser who couldn’t handle his loss. Until you think back to how their first fight ended: Doppo wanted to stop, Jr hinted that he wouldn’t let up, and Doppo continued fighting until Jr properly knocked him out. Doppo is just showing Jr A Taste Of His Own Medicine.
When Tokugawa asks Miyamoto Musashi about his duel with Sasaki Kojiro, he’s shocked that the swordsman doesn’t remember what is regarded as his greatest duel. Of course, this shouldn’t be surprising when you consider that all of Musashi’s fights were either sword duels or battles during war. Modern fighters remember their opponents because they’re hoping for a rematch: why would Musashi bother remembering someone who’s going to be dead when the fight is over?
Baki readily repels Pickle’s four-legged tackle despite neither having the sound barrier breaking punch of Katsumi nor the sheer size of Jack. While this could be explained by Baki’s Hanma blood or lifetime of training, the point can be made that it’s a move Baki understands the strengths and weaknesses of because he uses a variation himself: The Cockroach Tackle!
After Shobun Ron's defeat by Oliva, Kaku Kaioh intended to fight the remaining four matches himself (before Shunsei expressed a desire to fight and offered his "one man, one kill" strategy instead). Considering that Kaku's Offensive Shaori was strong enough to hurt Yujiro (even telling him that if he hadn't dodged it he would've been instantly killed), it's not hard to think that Jyaku, Ali Jr., and Baki would have all been defeated or killed by the Old Master.
