US’ Carmelita Jeter (L) competes with Ka

Carmelita Jeter (left) easily wins her heat of the women's 100 meters. (AFP PHOTO / FRANCK FIFE)

Carmelita Jeter (left) easily wins her heat of the women’s 100 meters. (AFP PHOTO / FRANCK FIFE)

US’ Carmelita Jeter (L) competes with Kazakhstan’s Olga Bludova (R) in the women’s 100m heats at the athletics event during the London 2012 Olympic Games on August 3, 2012 in London. AFP PHOTO / FRANCK FIFEFRANCK FIFE/AFP/GettyImages