Great Britain claim bronze in men's 4x400m relay

Martyn Rooney has helped Great Britain to a bronze medal in the 4x400m relay final at the World Athletics Championships.

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Rooney ran 44.00s on the final lap and came from behind to pip Jamaica's Javon Francis in a photo finish.

USA won the gold in a time of 2:57.82, with Trinidad and Tobago in second (2:58.20).

The event closed the World Athletics Championships and Great Britain finished fourth overall with four gold medals, one silver and two bronzes.