My legs are hurting now, itâs time to go: Usain Bolt
Following his final appearance at the world championships, eight-time Olympic gold winner Usain Bolt said, "My legs are hurting now, its time to go". The 30-year-old said that he will not defer his retirement. The Jamaican's final 100-metre race ended with him winning the bronze medal at the IAAF World Championships in London on Sunday. 