Mike Tyson vs. Michael Spinks fight in boxing history, grossing some $70 million, of which Tyson earned a record purse of around $20 million and Spinks $13.5 million. Tyson won the fight, knocking out Spinks in 91 seconds. Michael Spinks became a professional boxer shortly after he won the gold medal at middleweight in the 1976 Summer Olympics. Initially, Spinks was more concerned with assisting his brother Leon's rise to the heavyweight championship, but was later convinced to turn pro himself. In 1981 Spinks fought Eddie Mustafa Muhammad for the WBA light heavyweight championship and defeated him by decision to win his first world title.
Leon Spinks gained notoriety for the disaster which befell his career following the loss to Ali. However, he did challenge once more for the WBC heavyweight title in 1981 (losing to Larry Holmes by TKO in the third round), and the WBA cruiserweight title in 1986 (losing to Dwight Muhammad Qawi by TKO in the sixth round). As an amateur, Spinks won numerous medals in the light heavyweight division. The first was bronze at the inaugural 1974 World Championships, followed by silver at the 1975 Pan American Games, and gold at the 1976 Summer Olympics; the latter alongside his brother Michael Spinks,