5 August 2012 Last updated at 20:06

100m final: Can Yohan Blake beat Usain Bolt?

BBC Sport's Leon Mann looks into the chances of World Champion Yohan Blake beating his team-mate Usain Bolt in the Olympic 100m final.

Yohan 'The Beast' Blake took gold at the World Championships in Daegu last year, after Bolt was disqualified for a false start , but can Blake take the Olympic title from his fellow countryman too?

Blake also claimed the 100m and 200m national titles from Bolt at the Jamaican Olympic trials , but that's just the dress rehearsal, can he do it in the final showdown?

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