The Ukrainian Olympic Committee said cross-country skier Marina Lisogor has failed a doping test, the third positive result of the Sochi Games.

Lisogor tested positive for trimetazidine, which is classified as a “specified stimulant” on the World Anti-Doping Agency’s prohibited list. Specified substances are considered more susceptible to inadvertent use and can carry reduced penalties.

Lisogor competed in two cross-country events at the Sochi Games, finishing far out of the medals.

According to the Ukrainian Olympic Committee on Saturday, Lisogor said she did not knowingly take a banned substance.

Lisogor’s failed drug test follows those of German biathlete Evi Sachenbacher-Stehle and Italian bobsledder William Frullani.

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