Michael Te-Pei Chang (born February 22, 1972) is an American former tennis player. He became the youngest male player to win a Grand Slam singles title when he won the French Open in 1989 at the age of 17 years and 4 months.Known for his on-court speed and fighting spirit, Chang is considered by many observers to have been one of the best defensive baseliners of all time. He also introduced the jumping two-handed backhand.