Leon Spinks Leon Spinks Leon Spinks (born July 11, 1953) is an American former professional boxer who competed from 1977 to 1995. In only his eighth professional fight, he won the undisputed heavyweight championship in 1978 after defeating Muhammad Ali in a split decision, in what was considered one of the biggest upsets in boxing history. Spinks was later stripped of the WBC title for facing Ali in an unapproved rematch seven months later, which he lost by unanimous decision. Besides being heavyweight champion and his characteristic gap-toothed grin (due to losing two and later all four of his front teeth), Spinks
Michael Spinks twelve-round majority decision over Eddie Davis. He and Qawi were only a couple of weeks away from fighting a rematch in September of that year, but that fight got called off when Qawi was injured during training. Spinks also was recognized as IBF Light heavyweight champion in 1984. In 1985, Spinks beat David Sears and Jim McDonald, both by knockout, in title defenses, before challenging Larry Holmes for the IBF and lineal heavyweight championship. Holmes was trying to tie Rocky Marciano's record of 49-0 as the heavyweight champion, but it was Spinks who made history that night, winning a controversial