Jamaican sprinter Usain Bolt

Associated Press
From left to right: Prince Albert of Monaco, Jamaican athlete Usain Bolt, US sprinter Allyson Felix and IAAF (International Association of Athletics Federations) President Lamine Diack posefor the media during an event marking the centenary of the  IAAF (International Association of Athletics Federations), in Barcelona, Saturday, Nov. 24, 2012.  (AP Photo/Manu Fernandez)

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The Jamaican sprinter and three-time Olympic gold medalist will be one of the biggest names to watch at the London Games.

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