TOPSHOTS (L-R) US Mike Rodgers, Jamaica's Nesta Carter, Jamaica's Kemar Bailey-Cole, Jamaica's Usain Bolt, US Justin Gatlin, Jamaica's Nickel Ashmeade, France's Christophe Lemaitre and Great Britain's James Dasaolu run during the100 metres final at the 2013 IAAF World Championships at the Luzhniki stadium in Moscow on August 11, 2013. Bolt timed a season's best 9.77 seconds, with American Justin Gatlin claiming silver in 9.85sec and Nesta Carter, also of Jamaica, taking bronze in 9.95sec. AFP PHOTO / LOIC VENANCE