text: Brianna Rollins of the United States competes in the Women's 100 metres hurdles semi finals during Day Eight of the IAAF World Athletics Championships Moscow 2013 at Luzhniki Stadium on August 2013 in Moscow, Russia. (Photo by Christian Petersen/ Athletic Models, Athletic Women, Sports Images, Sports Photos, Olympic Sports, Olympic Games, Brianna Rollins, Olympic Track And Field, World Athletics