Serena Williams · every age

What was Serena Williams doing at 17?

First major at 17, 23rd at 35, last match at 40

1. Sep 11, 1999

   Won the US Open at 17, her first Grand Slam title

   She beat world No. 1 Martina Hingis in the final, before her older sister Venus had won a major.

   Source: en.wikipedia.org