Emanuel Steward: $15 Million
Emanuel Steward, a Boxing Hall of Famer, made a significant impact in the boxing world not as a fighter but behind the scenes as a trainer. Although he was a Golden Gloves champion in the past, Steward transitioned to training amateurs in the early 1970s at Kronk Gym in Detroit, where he became a legendary figure in training. He transformed soft-hitting Thomas Hearns into a devastating champion. Before his passing in 2012, Steward also trained heavyweight champion Wladimir Klitschko.
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