It was only a fortnight ago that Chambers managed to achieve the Olympic 'A' qualifying standard, when clocking a time of 10.06seconds in Germany but today he finds himself ranked 11th fastest man in the world.

Even better news for Chambers came after setting an Alexander Stadium record of 10.00sec, when learning that only seven of those 11 will be running for their countries in Beijing next month.

Chambers, who served a two-year ban from athletics after failing a drugs test in 2003, must now wait to see if a High Court judge will give him the green right to run at the Beijing Games on Wednesday by issuing an injunction against a British Olympic Association bylaw.

Click here to read Yorkshire rower Andy Hodge who blogs exclusively for the Yorkshire Post.

His legal team will argue that the 1992 BOA ruling is unenforceable and a restraint of trade, although the full appeal is not expected to take place until March next year.

Four months ago Chambers, after winning the world indoor 60m silver medal, announced he might challenge the BOA bylaw banning drug cheats from Olympic competition.

His comment then – "I want to run and win an Olympic medal for my country" – had a hollow ring to it.

But now, given his world standing and the fact that Tyson Gay and Asafa Powell are struggling with injuries, the door is wide open for Chambers to make the final and maybe even challenge for a place on the medallists' podium.

World champion Gay, after winning the US Olympic 100m trial, injured himself in his 200m qualifier and his hamstring injury is still troubling him – although he is still scheduled to meet Powell in the Norwich Union London Grand Prix next week.

Powell himself pulled up 20m short of the 100m finishing line in last Friday's IAAF Golden League meeting in Rome with cramp in his groin, the latest problem for the world record holder.

Meanwhile Usain Bolt, who succeeded his fellow Jamaican as world record holder, has yet to decide whether to contest the 100m in Beijing.

Two-time Olympic 400m hurdles gold medallist Ed Moses, a persistent campaigner against drug cheats particularly when setting up the first out-of-competition tests for athletes, has provided unexpected backing for the BOA bylaw to be scrapped.

Moses believes BOA bylaws should be no more stringent than those of the International Olympic Committee.

He said: "It's almost like a death sentence. We have to deal with this problem where a national ruling body have rules which are more restrictive than the IOC.

"You have to be fair to the athletes and there will be other athletes in China who have tested positive in the past.

"I don't like the fact that Dwain has had a positive test, but, from an athlete's rights point of view, you have to stand up for him on this matter.

"If the IOC allow him to compete then there shouldn't be any reason why (he cannot go to the Games). He's served his penalty having tested positive and he's been a lot more contrite in the last six months."

No doubt the opinion of the American great will be among the paperwork which Chambers's legal team will hand to Mr Justice Mackay on Wednesday.

Maybe not so, will be the opinion of Moses's fellow Olympic champion Allan Wells, who took gold in the 100m at Moscow in 1980, who insists that allowing the sprinter to represent his country at the Games would be an ethical mistake.

He also rejected Moses's claims that a lifetime drugs ban represented 'a death sentence'.

"A death sentence for an athlete is a serious injury," he said.

"A lot of athletes have tested positive in the past, but we understand the rules and regulations of the BOA policy before we step on the track.

"I support the BOA in this instance. There's a moral issue behind this.

"Athletes in this country know the BOA policy."

Meanwhile only Simeon Williamson, runner-up to Chambers in Birmingham, is currently guaranteed his 100m place while third-placed Craig Pickering and other contenders will have to await the outcome of the Chambers hearing.

Pickering, who gained the Olympic 'A' standard last summer, has yet to do so this season, which could strengthen the case of Tyrone Edgar – fourth in the trial but who has a world-class mark of 10.05secs under his belt and won the European Cup title last month.

Chambers will be eager to learn the High Court decision on Wednesday and there is a possibility that he could be racing in Liege, Belgium, on Wednesday night.