Lleyton Hewitt

Lleyton Hewitt turned pro in 1998 and won his first tournament the same year. His long blonde hair and brash style reminded many of the young Andre Agassi, and Hewitt became a favorite heartthrob of teen tennis fans. He first played for Australia's Davis Cup team in 1999, and competed at Sydney in the 2000 Summer Olympics. Hewitt beat Pete Sampras in the finals of the 2001 U.S. Open to claim his first Grand Slam-level championship. The next year he won the Wimbledon men's singles title with a straight-sets win over David Nalbandian.

Extra credit: Hewitt began dating fellow tennis pro Kim Clijsters after they met at the 2000 Australian Open; the couple became engaged in December 2003 but split in 2004. Hewitt married Australian soap opera star Bec Cartwright in July 2005.