US two-time Olympic silver medalist and a two-time Athletics World Championship gold medalist Allyson Felix (R) wins the 400 meters race  at the Qatar Super Grand Prix in Doha on May 08,2009. Amantle Montsho from Botswana came seciond and Shericka Williams of Jamaica took third place. Getty Images logo Getty Images 33 months ago

US two-time Olympic silver medalist and a two-time Athletics World Championship gold medalist Allyson Felix (R) wins the 400 meters race at the Qatar Super Grand Prix in Doha on May 08,2009. Amantle Montsho from Botswana came seciond and Shericka Williams of Jamaica took third place.