Michael Phelps of U.S. waves to spectators after the awarding ceremony of men's 4x200m freestyle relay of swimming at the London 2012 Olympic Games in London, Britain, July 31, 2012. The U.S. swimmers claimed the title in this event. (Xinhua/Liu Dawei)
Swimmers of U.S. pose at the awarding ceremony of men's 4x200m freestyle relay of swimming at the London 2012 Olympic Games in London, Britain, July 31, 2012. The U.S. swimmers claimed the title in this event. (Xinhua/Fei Maohua)
Swimmers of U.S. celebrate after men's 4x200m freestyle relay of swimming at the London 2012 Olympic Games in London, Britain, July 31, 2012. The U.S. swimmers claimed the title in this event. (Xinhua/Fei Maohua)
