Madison, Felix, Knight and Jeter of the U.S. with gold medals in women's 4 x 100m relay at the London...
(L-R) Tianna Madison, Allyson Felix, Bianca Knight and Carmelita Jeter of the U.S. listen to the national anthem with their gold medals in the women's 4 x 100m relay at the London 2012 Olympic Games in London at the Olympic Stadium August 10, 2012. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT OLYMPICS SPORT ATHLETICS)
