Born in Staten Island, New York, Rooney faced early challenges with alcoholic parents and a turbulent home life. However, he found solace in boxing, quickly rising through the ranks to become a promising amateur fighter. Under the guidance of legendary trainer Cus D'Amato, Rooney turned pro and embarked on a career that would see him face off against champions like Davey Moore and Alexis Arguello. Rooney's career reached its pinnacle when he became the head trainer for Mike Tyson, guiding him to become the youngest heavyweight champion in history. However, Rooney's battles outside the ring, particularly with alcohol, would ultimately lead to the downfall of his marriage and his career as a trainer.
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