London Olympics Day 1

China's Yi Siling reacts after winning the women's 10m air rifle final competition at the London 2012 Olympic Games in the Royal Artillery Barracks at Woolwich in southeast London July 28, 2012.

Kazakhstan's Alexandr Vinokurov celebrates as he wins the men's cycling road race to claim the gold medal at the London 2012 Olympic Games July 28, 2012.

Italy's Valentina Vezzali celebrates defeating Tunisia's Ines Boubakri (not pictured) during their women's Individual Foil quarterfinal fencing competition at the ExCel venue at the London 2012 Olympic Games July 28, 2012.

Dominican's Republic Beatriz Piron prepares to lift in the women 48Kg Group A weightlifting competition at the London 2012 Olympic Games July 28, 2012.

Djibouti's Yasmin Hassan Farah serves against Brazil's Caroline Kumahara during their women's singles preliminary round table tennis match at the ExCel venue of the London 2012 Olympic Games in London July 28, 2012.

Britain's Sam Oldham competes on the parallel bars during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012.

Louis Smith of Great Britain cries during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012.

China's Sun Yang celebrates after winning the men's 400m freestyle final at the London 2012 Olympic Games at the Aquatics Centre July 28, 2012.

Michael Phelps of the U.S. reacts after finishing in fourth place in the men's 400m individual medley during the London 2012 Olympic Games at the Aquatics Centre July 28, 2012. REUTERS/Michael Dalder (BRITAIN - Tags: SPORT OLYMPICS SPORT SWIMMING)