Morgan Uceny of the U.S. kneels on the track after falling during the women's 1500m final during the...
Morgan Uceny of the U.S. kneels on the track after falling during the women's 1500m final during the London 2012 Olympic Games at the Olympic Stadium August 10, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: OLYMPICS SPORT ATHLETICS)