Powell set his world record mark in September 2007

World 100m record holder Asafa Powell is back in training after missing the start of the season with a chest injury and should be fit for the Olympics.

The Jamaican, who set the record of 9.74 seconds in September 2007, pulled a muscle when weight training and was forced to rest for a fortnight.

"He's doing fine and we expect him to be 100% in two weeks," said his agent Paul Doyle.

"It's just a case of making up time and shouldn't affect his Olympic build-up."

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Last week, Powell's fellow Jamaican Usain Bolt ran the second-fastest 100m in history, in a time of 9.76 secs.

The pair are expected to meet at Jamaica's national championships at the end of June.