The Jamaican athletics star Usain Bolt has answered questions about his form going into next month's world championships, easing to victory in the 100 metres at the London Diamond League meeting.
The world record holder overcame a dreadful start to blast past the field over the second half of the race and win in a season's best 9.85 seconds, well ahead of American Michael Rodgers (9.98) and Jamaican Nesta Carter (9.99).
It was a triumphant return to the Olympic stadium where Bolt dazzled the crowds at last year's London Games on his way to winning three gold medals.
