Michael Chang won French Open in 1989 aged just 17 . Win over Few people gave the 17-year-old Chinese American much chance against the world number one and three-time French Open champion . top seed Michael Chang in last 16 paved way for grand slam triumph . Ivan Lendl famously served underhand in the fifth set against the French Open . He beat Ivan Lendl in the final in 15-30 sets but never won another grand slam title .
Michael Chang won French Open in 1989 aged just 17 . Win over top seed Michael Chang in last 16 paved way for grand slam triumph . Ivan Lendl famously served underhand in the fifth set against the French Open . He beat Ivan Lendl in the final in 15-30 sets but never won another grand slam title .