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Tyson (born June30, 1966) is a retired American boxer. He was the undisputed heavyweightchampion and remains the youngest man ever to win a world heavyweight title atjust 20 years old. Throughout his career, Tyson became well-known for hiscontroversial behavior both inside and outside the ring. Nicknamed "KidDynamite",[1] "Iron Mike," and "The Baddest Man on thePlanet," Tyson won his first 19 professional bouts by knockout, 12 in the first round. He unified the beltsin the splintered heavyweight division in the late 1980s. Tyson was theundisputed heavyweight champion for over two years, before losing to 42-to-1underdog Buster Douglas in 1990. In 1992, Tyson was convicted of raping DesireeWashington, for which he served three years in prison. After being releasedfrom prison in 1995, he engaged in a series of comeback fights. He regained aportion of the heavyweight title, before losing it to Evander Holyfield in 1996by an 11th round TKO. Their 1997 rematch ended in disqualification for Tysonafter he bit off a piece of Holyfield✀s ear and an attempt to repeat the same asecond time a few minutes later during the same match. He fought for achampionship again at 35, losing by knockout to Lennox Lewis in 2002. Tysonretired from competitive boxing in 2005 after two consecutive knockout lossesto Danny Williams and journeyman Kevin McBride. Tyson declared bankruptcy in2003, despite receiving over US$30 million for several of his fights and $300million during his career.