Luis Suarez has nothing on Iron Mike. In one of the the most outrageous in-game infractions in sports history, Tyson was disqualified from his fight against Evander Holyfield after biting off a piece of his ear. The most infamous bite in sports history came after Tyson was upset that Holyfield kept headbutting him. After referee Mills Lane failed to stop Holyfield, Tyson took the law into his own hands, and took a bite out of the champ's hearing hole. He was fined $3 million, and was disqualified.