#379 - Buster Douglas - Former Heavyweight Boxing Champion Beat Mike Tyson In Biggest Upset Of All Time
James "Buster" Douglas is an American former professional boxer who competed between 1981 and 1999. He reigned as undisputed world heavyweight champion in 1990 after knocking out Mike Tyson to win the title. His win over Tyson is regarded as one of the biggest upsets in boxing history.