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Jamaican Olympic gold medallist Usain Bolt runs to win the "Mano a Mano" Men's 150m challenge on Copacabana beach in Rio de Janeiro, Brazil, Sunday, March 31, 2013. Bolt defeated Antigua and Barbuda's Daniel Bailey, Ecuador's Alex Quinones and Brazil's Bruno Lins de Barros on a 150m track specially built at the famous beach. (KEYSTONE/AP Photo/Felipe Dana)