File photo dated 27-08-2015 of Jamaica's Usain Bolt celebrates after winning the gold medal in the Men's 200 Metres final during day six of the IAAF World Championships at the Beijing National Stadium, China. PRESS ASSOCIATION Photo. Issue date: Monday July 11, 2016 Bolt's hamstring injury at the start of July will only add to the anticipation over the defence of his 100m and 200m titles in Rio. See PA story OLYMPICS Stars. Photo credit should read Adam Davy/PA Wire.