Heartbreaking ending for Usain Bolt as sprint king pulls up injured in final race
Usain Bolt has bowed out of athletics on a sad note after pulling up injured on the final leg of tonight's 100m relay final, which was won in a spectacular finish by Great Britain.
The Jamaican legend was unable to propel his country to victory like on so many other occasions, failing to claim gold for the second time at the world championships after taking bronze in last Saturday's 100m final, which was won by American Justin Gatlin.
Bolt took the baton in third position on the home straight, but pulled up with a leg injury, allowing Great Britain to pip USA at the line.
For Bolt, he steps away from the track with eight Olympic golds, 11 World Championship golds, two silvers and a bronze.
More to follow...