His professional career began in 1988 when he was just sixteen, and within two years he had reached the top ten rankings and become the youngest winner of the U. S. Open ever.

1988年，他以十六岁的年龄进军职业赛，两年不到，他已晋身世界排名前十位，并成为历史上最年轻的美国公开赛冠军。