The athlete awarded the women's 100m gold medal at the Commonwealth Games has tested positive for a banned substance.
The Sydney Morning Herald reports Nigerian Osayemi Oludamola, awarded the gold medal once Aussie Sally Pearson was stripped of the title, has returned a positive A-sample.
The Nigerian and English teams successfully disputed the legality of Pearson's victory on the track after a false start in an earlier race and subsequently had the sprinter stripped of her gold medal.
Channel 10 reports Oludamola's camp is claiming that she was possibly given the stimulant as a treatment for a nagging toothache by her own country's medical team.
A Delhi Games official has reportedly confirmed the positive test to the Herald.
Commonwealth Games Federation president Mike Fennell is due to hold a press conference at 4pm (AEST).