BEIJING — The figure skating competition at the 2022 Beijing Olympics was thrown into turmoil on Friday with the revelation that Kamila Valieva, the 15-year-old star of the Russian team and a favorite to win two golds, had tested positive for a banned substance during a competition before the Games.
Valieva helped Russia’s team win the gold medal in the figure skating team event on Monday. But Tuesday’s medal ceremony was postponed shortly before it was to begin after skating officials learned that Valieva had tested positive on Dec. 25 for trimetazidine, a heart medication that is on the World Anti-Doping Agency’s list of banned substances.