Another Sister Act

Serena Williams of the US (R) and sister and partner Venus Williams of the US (L) pose with the winner's trophy following...

Stress Management

US tennis player Venus Williams gestures during her quarter-final women's singles match against Chinese opponent Li Na on the...

September 8, 2009: Richard Williams, father of tennis stars Serena and Venus Williams of the USA during Day 9 of the 2009 U.S. Open...

Serena Williams of the US (L) and sister and partner Venus Williams of the US (R) pose with the winner's trophy following...

Serena Williams of the US (R) and sister and partner Venus Williams of the US (R) share a laugh as they joke around...

Venus Williams of the United States, right, and her sister Serena Williams, second right, celebrate at match point...

Serena Williams of the US (R) celebrates with sister and partner Venus Williams of the US (L) after winning championship point against Cara Black...

Venus Williams of the US reacts during her loss to Li Na of China in their women's...

Venus Williams of the United States chases down a shot from Li Na of China during their Women...

...on day six of the 2010 Australian Open in Melbourne Park. Williams won 6-0, 6-3. Jan 23, 2010; Melbourne, AUSTRALIA; Venus Williams (USA) returns a shot against Casey Dellacqua (AUS) on day...

MELBOURNE, AUSTRALIA - JANUARY 25: Venus Williams of the United States of America plays a backhand in her fourth round match against Francesca...

Venus Williams of the US eyes an overhead shot against Casey Dellacqua of Australia in their women's...

MELBOURNE, AUSTRALIA - JANUARY 19: Venus Williams of the United States of America plays a backhand in her first round match against Lucie...

MELBOURNE, AUSTRALIA - JANUARY 19: Venus Williams of the United States of America plays a backhand in her first round match against Lucie...

A relaxed Venus Williams of the US returns during a practice session in the lead-up to the Australian Open...