Serena Williams of the U.S. serves to Victoria Azarenka of Belarus during their women's semi-final tennis...
Serena Williams of the U.S. hits a return to Victoria Azarenka of Belarus during their women's semi-final tennis match at the Wimbledon tennis championships in London July 5, 2012. REUTERS/Gerry Penney/Pool (BRITAIN - Tags: SPORT TENNIS)