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 win the heavyweight title. "The Ring" Magazine in 2002 ranked Spinks as the third greatest light-heavyweight of all time, behind Ezzard Charles and Archie Moore, but ahead of Tommy Loughran, Bob Foster, Harold Johnson, Maxie Rosenbloom and Billy Conn. Furthermore, Spinks did what no other light-heavyweight champion was ever able to do: move up to win the world heavyweight championship, by decisioning IBF champion Larry Holmes in 1985. On "The Ring" Magazine's list of 100 greatest punchers of all time, Spinks was ranked 42nd. On "The Ring" Magazine's list of the 80 Best Fighters of the Last 80 Years, released