Denis Kudla of the United States reacts as he plays Ivan Dodig of Croatia in their Men's second round singles match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, June 27, 2013. (AP Photo/Sang Tan)

Photo by: Sang Tan

Denis Kudla of the United States reacts as he plays Ivan Dodig of Croatia in their Men's second round singles match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, June 27, 2013. (AP Photo/Sang Tan)