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usain bolt update intv wrn_00011713
usain bolt update intv wrn_00011713

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    Usain Bolt: I won't back down from Gatlin challenge

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Usain Bolt: I won't back down from Gatlin challenge

He hasn't broken ten seconds this year, but world record holder Usain Bolt believes he will be firing on all cylinders at the World Championships.

Usain Bolt: I won't back down from Gatlin challenge

He hasn't broken ten seconds this year, but world record holder Usain Bolt believes he will be firing on all cylinders at the World Championships.