The 15-year-old star of Russia’s figure skating team who powered it to a win in the team figure skating competition tested positive for a banned substance at a national competition leading up to the Games, potentially throwing the team’s gold medal into doubt.
A doping test collected from the skater, Kamila Valieva, was found to have used trimetazidine, a heart medication not normally allowed in competition, according to a statement Friday from the International Testing Agency.
It was unclear if Russia would be awarded the gold medal.
The decision, the testing agency said, “can be taken by the ISU only after a final decision on the full merits of the case has been taken.