Usain Bolt has dismissed suggestions former Olympic champion Justin Gatlin will provide the biggest challenge for his 100m crown at London 2012 reports BBC Sport.
World indoor champion Gatlin staked his claim as a contender for the Olympic 100m with victory in Doha’s Diamond League meeting on 11 May.
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- Usain Bolt crosses the line to win the gold medal in the men’s 100 Metres Final during day two of the 12th IAAF World Athletics Championships