A Russian medalist at the Pyeongchang Winter Olympics is suspected of having tested positive for a banned substance, a source at the Games said on Sunday, in a potential major blow to Russia's efforts to emerge from a drug-cheating scandal.
Alexander Krushelnitsky, a bronze-medalist along with his wife in mixed-doubles curling, is suspected of having tested positive for meldonium, the source said. Meldonium increases blood flow which improves exercise capacity in athletes.
Krushelnitsky did not respond immediately to a request for comment. A spokesman for the Russian delegation at Pyeongchang said he had no immediate comment.