Janko Tipsarevic of Serbia returns a shot to David Nalbandian at the All England Lawn Tennis Club at Wimbledon, in London, at the 2012 Summer Olympics - Photo

Saturday July 28, 01:49 PM
Janko Tipsarevic of Serbia returns a shot to David Nalbandian at the All England Lawn Tennis Club at Wimbledon, in London, at the 2012 Summer Olympics, Saturday, July 28, 2012. (AP Photo/Mark Humphrey)