“Marvelous” Marvin Hagler was certainly one of the most dominant and successful boxers in history, earning the title of undisputed middleweight champion from 1980-87. Amazingly, Hagler defended his title 12 times during the decade.
It was his win over Thomas Hearns in the World Middleweight Championship bout in April 1985 that Hagler may best be remembered for. He beat Hearns in the third round when the referee determined Hearns could not take any more punishment.