London: Usain Bolt insisted yesterday he would be ready for the challenge of toppling the in-form American Justin Gatlin at the World Championships in Beijing next month. The Jamaican made the pledge on the eve of his return from injury in the 100m on the opening night of the Anniversary Games Diamond League meeting in London today.


Olympic gold medallist Usain Bolt. INSET: Justin Gatlin. Pics: Getty Images 

Bolt has not raced since winning the New York Diamond League 200m race on June 13 because of a pelvic problem. The world record holder at 100m and 200m also said that he had "a problem" with Gatlin's US teammate Tyson Gay about his doping past but not with Gatlin, who has served two doping suspensions and who has run the four fastest times of 2015 at both 100m and 200m.