Serena, left and Venus, right Williams return a shot to Cara Black of Zimbabwe and Liezel Huber of the U.S. during their doubles match at Wimbledon, Friday, July 3, 2009. AP Photo logo AP Photo 4 months ago

Serena, left and Venus, right Williams return a shot to Cara Black of Zimbabwe and Liezel Huber of the U.S. during their doubles match at Wimbledon, Friday, July 3, 2009.