sentence1: In 1997, Tyson bit off part of one of Evander Holyfield's ears in their rematch that led to Tyson's disqualification and suspension. In 2002, at a melee at a news conference in New York, Tyson bit champion Lennox Lewis' leg.
sentence2: Tyson bit off part of one of Evander Holyfield's ears in 2002.