Marvelous Marvin Hagler, the middleweight boxing great whose title reign and career ended with a split-decision loss to “Sugar” Ray Leonard in 1987, died Saturday. He was 66.

Wife Kay G. Hagler confirmed the death on Facebook on the verified Marvelous Marvin Hagler Fan Club page. He was the undisputed middleweight champion from 1980 to his loss to Leonard at Caesars Palace in Las Vegas on April 6, 1987. The fierce left-hander had two of his biggest victories at Caesars Palace, unanimously outpointing Roberto Duran in 1983 and knocking out Thomas Hearns in the third round in 1985.

(Story written By TIM DAHLBERG/AP)

In remembrance of Hagler, watch what many call the most exciting round of boxing during a fight he had with rival Tommy Hearns.

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