Usain Bolt Reveals What Could Bring Him Out of Retirement

Usain Bolt says he can remember the biggest races of his career frame-by-frame, almost in slow motion, including his world record-setting one at the 2009 World Championships in Berlin. The Jamaican 8x-Olympic gold medalist and current fastest person in the world bested his then-biggest rival, Tyson Gay of the U.S.,

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