Reuters - Thu, 11 Mar 16:42:00 2010
Polish cross-country skier Kornelia Marek tested positive for a banned substance during the Vancouver Olympics last month.
The national committee said her A sample had turned in a positive test for an unnamed substance following her participation in the 4x5km relay event on February 25.
Poland, with Marek in the team, finished sixth in the women's 4x5km relay and ninth in the team sprint.
The 24-year-old came 11th in the women's individual 30km mass start and 35th in the 15km pursuit.
"Her B sample will be tested on March 12 at the Olympic anti-doping lab in Richmond (Canada) at her request," the Polish Olympic Committee said in a statement.
The International Olympic Committee said it had launched a disciplinary procedure.
"We can confirm that we have an adverse analytical finding," IOC spokesman Mark Adams said. "The athlete and the national Olympic committee have been informed and a disciplinary procedure is underway."
As a first-time offender, Marek could face a two-year ban. Until Thursday, only two athletes had failed doping tests during the official Vancouver Games Olympic period which started on February 4 and finished with the end of the Games on February 28.
Both athletes received only reprimands.
Slovak ice hockey player Lubomir Visnovsky tested positive for a substance found in a common cold medicine and Russian ice hockey player Svetlana Terenteva was reprimanded for taking a mild stimulant found in an over-the-counter nasal spray.
The IOC conducted the largest number of doping tests in the history of the winter Games in Vancouver with more than 2,100 blood and urine samples collected.
It will freeze the samples for a period of eight years to allow for re-testing for banned drugs that may not have been known at the time of the Vancouver Olympics.