Usain Bolt Bolt was named IAAF World Male Athlete of the Year. An injury to Bolt's hamstring in March 2014 caused him to miss nine weeks of training. Having recovered from surgery, Bolt competed in the 4 × 100 metres relay of the 2014 Commonwealth Games in Glasgow. Not in peak form Bolt said that he was attending the Games for the fans and to show his progress since the injury. Bolt and his teammates won the 4 × 100 metres relay in 37.58 seconds – a Commonwealth Games record. This was the foremost competition of the year for Bolt, given no
Usain Bolt saying that the prospect of having to return the gold was "heartbreaking". The banned substance in Carter's test was identified as methylhexanamine, a nasal decongestant sometimes used in dietary supplements. At the 2017 World Athletics Championships, Bolt won his heat uncomfortably after a slow start in 10.07, in his semi-final he improved to 9.98 but was beaten by Christian Coleman by 0.01. That race broke Bolt's 4 year winning streak in the 100m. In his final individual race, in the final, Bolt won the Bronze medal in 9.95, 0.01 behind Silver medalist Coleman and 0.03 behind World Champion Justin Gatlin.