The first of many. A 17-year-old Williams beats Martina Hingis at the 1999 US Open in straight sets to win her first major title.
Conquering clay. Serena beats sister Venus at Roland Garros 7-5 6-3 in 2002 to claim her second grand slam at the French Open.
A few weeks later, Serena makes it a hattrick of grand slams with victory over Venus at the Wimbledon final in July 2002.