The Polish Olympic Committee says cross-country skier Kornelia Marek tested positive for EPO at the Vancouver Olympics.
Marek, who helped Poland to a sixth-place finish in the women's 20,000-meter relay on Feb. 25, tested positive for doping after that race. She also finished 11th in the 30K mass start and ninth in the women's team sprint.
The "B" sample is to be tested Friday in Richmond, British Columbia.
Polish Olympic Committee spokesman Henryk Urbas says Marek has denied taking any banned substances.