Russian figure skater Kamila Valieva, whose doping case has rocked the Beijing Olympics, had three drugs that could be used to treat heart conditions in the sample she provided last December, the New York Times reported on Tuesday.

In addition to testing positive for the banned angina drug trimetazidine, the New York Times report said the Stockholm laboratory that analyzed Valieva's sample also found evidence of two other heart medications that are not on the banned list: hypoxen and L-Carnitine.

"It's a trifecta of substances — two of which are allowed, and one that is not allowed," United States Anti-Doping Agency Chief Executive Officer Travis Tygart said in the report.

Tygart added that the benefits of such a combination "seem to be aimed at increasing endurance, reducing fatigue and promoting greater efficiency in using oxygen."

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