Athletics: International newsDwain Chambers' hopes of earning enough money to appeal against his Olympic ban looked in tatters last night after two of the world's leading athletics promoters said they did not want him back.

UK Athletics might have been unable legally to stop Chambers returning to the team for the world indoor championships in Valencia next month, but the paymasters of the sport have other ideas.

Rayne Soderberg, the president of the Euromeetings Group that represents 51 promoters throughout Europe, and Patrick Magyar, the meeting director of Zurich's Weltklasse, the richest grand prix on the circuit, have insisted that there will be no place for drug offenders.

"We have agreed not to invite these [ convicted] athletes ever again," said Soderberg. "These people cause the sport so much damage, it cannot be forgiven."

The Euromeetings Group will meet on the final day of the championships in Valencia to rubber-stamp their decision, but Magyar said it would be almost impossible to go against the decision of Fast Track, the commercial arm of UK Athletics, who have blocked Chambers from competing in the Norwich Union Grand Prix in Birmingham on Saturday.

Magyar said: "I personally judge people who are behind that organisation [ Fast Track], whether it is Alan Pascoe, Ian Stewart or Jon Ridgeon, as being of high integrity and strong individuals.

"If they have taken that decision, there has been a lot of thinking and discussion of rationale behind that."

He said that, to a degree, to invite Chambers would be to "criticise the decision which our British colleagues have taken."

Chambers, whose return to the sport for a second time following his two-year drugs ban from which he returned in 2006, has sparked general displeasure, owes around 134,000 to both the International Association of Athletics Federations and European promoters for money he earned while running under the influence of the steroid tetrahydrogestrinone between 2002 and 2003 before he tested positive.

The disgraced sprinter is aiming to take on the British Olympic Association in an attempt to overturn his lifetime ban from running for Team GB at the Games. If the case goes to court it could cost a substantial six-figure sum which Chambers is unlikely to afford if he is denied the chance to earn money on the lucrative grand prix circuit.

Soderberg added: "In October, the general assembly of our group agreed not to invite athletes who are coming back from a previous doping offence."