Michael Chang is a former professional tennis player who achieved remarkable success in the sport at a young age. He is best known for his 1989 French Open victory, which made him the youngest male player ever to win a Grand Slam singles title at the age of 17. He
From Wikipedia
Michael Te-pei Chang 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.