Retired heavyweight nicknamed "TNT" who won a gold medal in the 1979 Pan American Games and briefly held the IBF heavyweight title.
He turned professional in 1980, knocking out Chuck Gardner.
On May 30, 1987, he defeated Buster Douglas via 10th round TKO to earn the IBF heavyweight title.
His father was also a professional boxer.
He broke his hand in training but still opted to defend his IBF title against Mike Tyson and lost via unanimous decision.