World Athletics Championships 2017: GB's Kyle Langford misses out as Bosse takes 800m gold
Great Britain's Kyle Langford narrowly misses out on a medal in a thrilling finale to the men's 800m as France's Pierre-Ambroise Bosse wins gold at the World Championships in London.
Langford, who went into the competition ranked 40th in the world, ran a personal best of one minute 45.25 seconds.
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