Tony Allen vs OJ Mayo
Guard Tony Allen has never been one to shy away from conflicts, and has generally been one of the players in the NBA whose bad side you’d like to prefer. But, former Memphis Grizzlies teammate O.J. Mayo decided to tempt fate, when he not only refused to pay a debt of approximately $1,000 or so, which he lost to Allen in a card game, but then became belligerent towards Allen in a fit of anger about losing.
Mayo wouldn’t stop going off on Allen, even after Allen warned him to shut his mouth, so Allen went ahead and shut it for him by punching him in the face. Mayo was later seen with a swollen face, as a result of the haymaker delivered from Allen.