LONDON (AFP) - Dwain Chambers will compete in next month's world indoor championships knowing he faces financial ruin after being declared persona non grata by the organisers of most of Europe's top track and field events.

The sprinter, who is attempting to rebuild his career after completing a two-year ban for doping in 2006, this week won his battle to be included in Britain's team against the wishes of UK Athletics.

But in the aftermath of that decision, the Euromeetings Group, which represents 51 promoters throughout Europe, has declared that Chambers will not be welcome at any of their events.

Chambers has already been barred from UK events organised by Fast Track, the commercial arm of UK athletics, and been told he will not be invited to Zurich's Weltklasse, the richest meet on the circuit.

Euromeetings Group President Rajne Soderberg said his organisation had agreed not to offer invitations to any athletes found guilty of doping offences.

"These people cause the sport so much damage, it cannot be forgiven," he told the BBC.

That stance leaves Chambers in a tough position. The 29-year-old has to repay some 100,000 pounds of prize money he won while using the banned anabolic steroid tetrahydrogestrinone (THG) up to 2006.

Without the opportunity to earn prize money, Chambers may also struggle to finance his planned challenge to a lifetime ban on him representing Great Britain at the Olympics.

UK Athletics has launched a review of its anti-doping policies which could could result in athletes who are caught using performance-enhancing drugs being banned from representing Great Britain in any forum for life.