He also defeated heavyweight world champions Oliver McCall, Trevor Berbick, and Greg Page.ĭouglas was a 42-to-1 underdog going into his 1990 fight against Tyson, who was undefeated and considered to be the best boxer in the world for his domination of the division over the previous three years. He reigned as undisputed world heavyweight champion in 1990 after knocking out Mike Tyson to win the title. James ' Buster' Douglas (born April 7, 1960) is an American former professional boxer who competed between 19.
