Mike Tyson lies flat on his back after being decked by challenger James “Buster” Douglas during the 10th round of one of the biggest boxing upsets of all time. Douglas turns 60 years old on April 7.
Mitsuru Sakai, AP

James “Buster” Douglas celebrates after his knockout victory over Mike Tyson at the Tokyo Dome in 1990.
SADAYUKI MIKAMI, APMike Tyson after losing fight versus James Buster Douglas at Tokyo Dome in Japan on Feb. 11, 1990.
Takeo Tanuma, Sports Illustrated Via Getty ImagesBuster Douglas, left, follows through with a left hand that dropped Mike Tyson to the canvas in the 10th round of their championship bout.
Tsugufumi Matsumoto, ASSOCIATED PRESSBuster Douglas stands over champion Mike Tyson during their memorable championship bout in 1990.
Tsugufumi Matsumoto, Associated PressReferee Octavio Mayron counts after Mike Tyson was floored by James “Buster” Douglas in the tenth round of their championship bout in Tokyo in 1990.
Sadayuki Mikami, ASSOCIATED PRESSReferee Octavio Mayron, left, ends the fight between champion Mike Tyson (pitcured) and challenger James “Buster” Douglas in Tokyo in 1990.
Itsuo Inovye, APBefore the title bout, heavyweight champion Mike Tyson, left, challenger Buster Douglas, right, and promoter Don King pose for photographers in Tokyo.
Sadayuki Mikami, ASSOCIATED PRESSBuster Douglas, right, connects to the head of Mike Tyson with a hard right during their world heavyweight title bout in Tokyo in 1990.
SADAYUKI MIKAMI, ASSOCIATED PRESSMike Tyson drops to the canvas after a shot from Buster Douglas during their memorable title bout in Tokyo in 1990.