Roger Federer of Switzerland returns to Alejandro Falla of Colombia in a first round match at the All England Lawn Tennis Club in Wimbledon, London at the 2012 Summer Olympics, Saturday, July 28, 2012. (AP Photo/Elise Amendola)
Roger Federer of Switzerland returns to Alejandro Falla of Colombia in a first round match at the All England Lawn Tennis Club in Wimbledon, London at the 2012 Summer Olympics, Saturday, July 28, 2012. (AP Photo/Elise Amendola)
