Usain Bolt fails to finish the last ever race of his career

Jamaican sprinter Usain Bolt failed to finish the last ever race of his career, getting injured in the final leg of the 4x100-metre relay at the IAAF World Championships. Jamaica didn't finish as Great Britain and NI set a national record to win the race. Bolt had finished with a bronze in the 100-metre sprint, his career's last solo race.