Russia's Natalya Antyukh runs ahead during her women's 400m hurdles semi-final at the London 2012 Olympic...
Russia's Natalya Antyukh (C) runs ahead of third place finisher T'Erea Brown of the U.S. and Jamaica's Nickiesha Wilson during their women's 400m hurdles semi-final at the London 2012 Olympic Games at the Olympic Stadium August 6, 2012. REUTERS/David Gray (BRITAIN)