World Athletics 2013: Adam Gemili wins 200m heat in PB

British sprinter Adam Gemili wins his 200m heat in a personal best of 20.17 seconds at the World Championships in Moscow.

The former footballer improved his best time by 0.13 seconds to qualify alongside fellow Briton Delano Williams, 19, who finished second to Usain Bolt in his heat.

Britain's James Ellington ran 20.55 seconds to win his heat and qualify for Friday's semi-finals.

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