Asafa Powell believes Crystal Palace could be the scene of Britain's fastest 100 metres when he races Justin Gatlin in the London Grand Prix late next month.

The pair share the 100m world record of 9.77 seconds and, after the contractual hiccup which has prevented them racing each other at Gateshead this weekend, they will renew their rivalry on July 28.

Gatlin, of the United States, last month matched the Jamaican's world record before pulling the plug on their projected battle in the North-east.

In their London race, the target will be to smash the UK all-comers' record of 9.89secs which Gatlin set at last summer's Crystal Palace event. Powell failed to finish that race due to a groin injury.

With a best of 9.95secs this season, Powell has not been as quick as Gatlin although he has consistently won races against world-class opposition. The Jamaican said: "I have still been holding on a little from the injury but give me two more races and I'll be all right.

"I'm also practising something new my coach has devised and shortly I expect to be regularly running 9.8's, as I'll have much more speed. London is a very good track and I want to achieve something special there."

Like Gatlin, Powell believes the world's two fastest men should restrict their head-to-head duels to a minumum, to maintain spectator excitement when they do clash.

The Commonwealth Games champion said: "It's the biggest thing people want to see this summer and I think we shouldn't race each other more than twice.

"Neither of us wants to share the world record and I believe at some stage this year because of our rivalry, it will be broken."

Powell believes he will eventually be capable of running below 9.70secs and stressed he had no objection to Gatlin pulling out of their Gateshead encounter.

Powell, who will run on Tyneside, said: "He pulled out for a good reason and he shouldn't be treated in a bad way."

Powell added that he would have no objection if Dwain Chambers, the disgraced European champion, was allowed to compete at the Gateshead event, for the first time since his drugs ban expired.