(From top to bottom) Trinidad and Tobago’s Richard Thompson, Jamaica’s Asafa Powell, USA’s Tyson Gay, Jamaica’s Yohan Blake, USA’s Justin Gatlin, Jamaica’s Usain Bolt, USA’s Ryan Bailey and Netherlands’ Churandy Martina run out of the blocks at the start of the Men’s 100m Final at the Olympic Stadium on day nine of the London 2012 Olympic Games.

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