Serbia's Stefana Veljkovic reacts after losing their women's Group B volleyball match against Brazil at Earls Court during the London 2012 Olympic Games August 5, 2012. (Photo by Ivan Alvarado/Reuters)

Goalkeeper Mohamed Bassam (L) of Egypt comforts team mate Eslam Ramadan (C) as he cries after their men's quarterfinal soccer match against Japan at the London 2012 Olympic Games at Old Trafford in Manchester, August 4, 2012. (Photo by Andrea Comas/Reuters)

Denmark's Ann Grete Norgaard cries after their loss to Norway in their women's handball Preliminaries Group B match at the Copper Box venue during the London 2012 Olympic Games August 3, 2012. (Photo by Marko Djurica/Reuters)

Germany's Silke Spiegelburg reacts during the women's pole vault final at the London 2012 Olympic Games in the Olympic Stadium August 6, 2012. (Photo by Mark Blinch/Reuters)

Iran's Saeid Morad Abdvali reacts after been defeated by France's Steeve Guenot on the Men's 66Kg Greco-Roman wrestling at the ExCel venue during the London 2012 Olympic Games August 7, 2012. (Photo by Kim Kyung-Hoon/Reuters)

China's Ma Yunwen (L) and Hui Ruoqi react after losing their women's quarterfinal volleyball match against Japan at Earls Court during the London 2012 Olympic Games August 7, 2012. (Photo by Ivan Alvarado/Reuters)

Turkey's Merve Aydin cries after she came in last in her women's 800m round 1 heat at the London 2012 Olympic Games at the Olympic Stadium August 8, 2012. (Photo by Lucy Nicholson/Reuters)

Italy's Francesca Piccinini reacts after losing their women's quarterfinal volleyball match against South Korea at Earls Court during the London 2012 Olympic Games August 7, 2012. (Photo by Ivan Alvarado/Reuters)

Great Britain's players react after defeated by Argetina at their women's semifinal hockey match at the Riverbank Arena at the London 2012 Olympic Games August 8, 2012. (Photo by Suzanne Plunkett/Reuters)

August 8, 2012; London, United Kingdom; Lashinda Demus (USA) reacts after finishing second in the women's 400m hurdles in 52.77 during the London 2012 Olympic Games at Olympic Stadium. (Photo by Kirby Lee/USA TODAY Sports)

France's Kevin Mayer reacts after his men's decathlon 110m hurdles heat during the London 2012 Olympic Games at the Olympic Stadium August 9, 2012. (Photo by Dylan Martinez/Reuters)