Michael Te-pei Chang (born February 22, 1972) is an American former professional tennis player and coach. He was ranked world No. 2 by the Association of Tennis Professionals (ATP) in 1996. Chang is the youngest man in history to win a singles major, winning the 1989 French Open at 17 years and 109 days old. He won a total of 34 ATP Tour-level singles titles, including seven Masters titles, and was a three-time major runner-up. Wikipedia
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