Mike Tyson
World champion Mike Tyson scored a 1st round knockout in his professional debut. Tyson is an American former professional boxer who competed from 1985 to 2005. He reigned as the undisputed world heavyweight champion and holds the record as the youngest boxer to win a heavyweight title at 20 years, 4 months and 22 days old. In 1988, Tyson became the lineal champion when he knocked out Michael Spinks in 91 seconds of the first round.
