View of the hair of Serena Williams of the U.S. during her women's singles tennis match against Russia's...
View of the hair of Serena Williams of the U.S. during her women's singles tennis match against Russia's Vera Zvonareva at the All England Lawn Tennis Club during the London 2012 Olympic Games August 1, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: OLYMPICS SPORT TENNIS)