PHOTOS:

See additional photos of Green Tennis Club players here.

LINKS:

• United States Tennis Association
• The rules of tennis from the USTA
• ATP Tennis Tour (men's tour)
• Sony Ericsson WTA Tour (women's tour)
• Tennis scores at CBS Sportsline
• Commentary from SI's Jon Wertheim
• What's on the Tennis Channel today?
• Head Tennis - sponsor of the Green Tennis Club
• K-SWISS shoes - sponsor of Green Tennis Club