Michael Spinks in 2002, Spinks ranked 41st. East Side Boxing said in its tribute to Spinks, "Michael Spinks went undefeated fighting during the deepest era in Light Heavyweight history. And he beat the real heavyweight champion to win the title, who was also undefeated. Michael Spinks is the most accomplished light heavyweight champion in history." Spinks is the rare top fighter who left the sport with both money and his health and never returned to the ring. Aside from a rare event honoring him and occasionally attending fights, Spinks has largely remained off the boxing scene and out of the public eye.
Mike Tyson vs. Michael Spinks between Tyson and Spinks grew to settle the issue of who the real champion was, but negotiations were protracted because Tyson's co-managers Bill Cayton and Jimmy Jacobs and Spinks' manager Butch Lewis struggled to agree on terms. Negotiations temporarily broke down when Lewis insisted on a $15 million guarantee for his fighter. Annoyed at constantly being asked about the fight, Tyson eventually demanded that his managers reach an agreement with Lewis. By April an agreement had been reached, although another problem arose when the IBF threatened to strip Tyson of their title if the fight was not scheduled for 15