Michael John Nunn is an American former professional boxer. He held the IBF and lineal middleweight titles, as well as the WBA and lineal super middleweight titles. Nunn turned professional in 1984. After winning his first thirty fights….he fought IBF middleweight title-holder Frank Tate….who was 23-0. The fight took place on July 28, 1988 at Caesar’s Palace in Las Vegas with Nunn winning the title by a ninth-round knockout. In his first title defense….he knocked out Juan Roldan in the eighth round. His second defense was a stunning first-round knockout of Sumbu Kalambay to capture the vacant lineal middleweight championship. Nunn’s next two title defenses were twelve-round majority decision wins over Iran Barkley and Marlon Starling. For his fifth defense, Nunn went to France and knocked out Donald Curry in ten rounds. On May 10, 1991, in his hometown of Davenport, Iowa, Nunn lost his title in a big upset to James Toney. Nunn, well ahead on points after ten rounds, was knocked out after being dropped by a left hook in the eleventh round. In 2004, he was sentenced to 24 years in prison for drug trafficking.