Russia Skater Tested Positive for Banned Drug Before Olympics.

(Bloomberg) -- Russian figure skater Kamila Valieva tested positive for a banned substance before the games, according to the International Testing Agency, a result that only came to light after she helped Team Russia win the team figure skating competition. In a sample taken Dec. 25 at the Russian Figure Skating Championships, Valieva tested positive for trimetazidine, a drug typically used to treat chest pain and vertigo but which can also boost endurance, the ITA said. [Extracted from the article]