Rusedski will fight the case against him to the "bitter end"

He believes his case exhibits the same characteristics as those relating to seven other players who previously tested positive for the banned steroid.

But while those players escaped blame with the ATP accepting responsibility, Rusedski now faces a potential ban.

In a statement Rusedski said the story "represents one of the biggest scandals in world sport".

Rusedski added that there are now 47 samples that have tested positive and these "emanate solely from the 120 or so top players on the ATP tour".

If all 47 samples came from different players "nearly half of the Tour could have demonstrated elevated levels of nandrolone", Rusedski concluded.

I consider it wrong and unfair - however the ATP have not taken this view Greg Rusedski Greg Rusedski's statement in full

Two weeks before Rusedski gave his sample on 23 July 2003, the ATP cleared the seven players with confirmed positive tests, adding that it was the end of the matter.

The ATP took responsibility for the positives because its own trainers had handed out the supplements that could have caused the positive tests.

And, the British number two, who was "stunned" when told news of his positive sample, remains adamant that his case has the same "analytical fingerprint" as those that went before.

"I intend to show this case is unique, as was demonstrated by my unprecedented decision to go public and declare my innocence," Rusedski's statement read.

"The sample I provided was found to contain the metabolites of nandrolone in a concentration not exceeding 5ng/ml.

"However, this does not tell the whole story.

"What the sample also indicated was the presence of the same common analytical fingerprint as that detected in over 46 other samples provided by professional tennis players on the ATP Main Tour.

"This type of analytical fingerprint has never been found in any other sport and therefore is unique to tennis.

I feel it is good it came out in the open and everyone knows his side of the story Tim Henman Rusedski vows to fight charge

"This indicates that the positives all spring from a common source."

Rusedski added that he felt he had been "singled out" by the organisation.

"I have subsequently learnt that since July three other new cases have come to light in tennis which have also demonstrated elevated levels of nandrolone and have also demonstrated the common analytical fingerprint," Rusedski added.

"It is, I believe, absolutely clear that something is very wrong.

"We now have over 47 samples demonstrating elevated levels of nandrolone. The odds of this happening at random are billions to one against."

Rusedski concluded by saying he would challenge the case to the "bitter end".