PARIS (AFP) ??” European 100 measure s champion Dwain Chambers.

PARIS (AFP) ??” European 100 measure s champion Dwain Chambers, already facing a two-year ban for doping, was named as common of two athletes to have criterioned positive for the designer steroid tetrahydrogestrinone (THG) at the Paris world championships.

The L'Equipe sports daily said Tuesday the British athlete and US shooter putter Kevin Toth were the sum of two units men to have been caught when all 400 urine samples were re-test for THG

The International Association of Athletics Federations (IAAF) ordered all urine samples to be re-test when the previously unheard-of THG was discovered at a Los Angeles laboratory.

IAAF president Lamine Diack refused to confirm the sum of two units athletes were the positive cases his Council reported forward Saturday as they were still waiting the secondary or B, sample test inferences

But he said the couple cases involved athletes linked to controversial California-based nutritionist Victor Victor Conte's Balco Laboratories in San