From left, silver medalist Switzerland's Roger Federer, gold medalist Andy Murray of Great Britain, and bronze medalist Juan Martin del Potro of Argentina stand during the medal ceremony of the men's singles event at the All England Lawn Tennis Club at Wimbledon, in London, at the 2012 Summer Olympics, Sunday, Aug. 5, 2012. (AP Photo/Elise Amendola)
From left, silver medalist Switzerland's Roger Federer, gold medalist Andy Murray of Great Britain, and bronze medalist Juan Martin del Potro of Argentina stand during the medal ceremony of the men's singles event at the All England Lawn Tennis Club at Wimbledon, in London, at the 2012 Summer Olympics, Sunday, Aug. 5, 2012. (AP Photo/Elise Amendola)
