Mike Tyson Bites Evander Holyfield's Ear (1997)

Mike Tyson biting Evander Holyfield's ear remains the most grotesque act in boxing history. In the third round of their 1997 rematch, Tyson sank his teeth into Holyfield's right ear, tearing off a 1-inch chunk of cartilage and spitting it onto the canvas. Referee Mills Lane disqualified Tyson immediately, stripping him of his boxing license and fining him $3 million. The Nevada State Athletic Commission voted unanimously to revoke Tyson's license for at least one year, a punishment that reflects the gravity of an act that forever tarnished a legendary career and set a benchmark for sportsmanship failure.