BEIJING -- Russian media reported Wednesday that 15-year-old figure skater Kamila Valieva had tested positive for a banned drug, after the ceremony to present her and her teammates with their Olympic gold medals was postponed for unexplained legal reasons. Newspapers RBC and Kommersant named the drug as trimetazidine, which is typically used to treat chest pain. The news broke late at night in Beijing, where Valieva was part of the Russian Olympic Committee ensemble that won the figure skating team event Monday ahead of the United States and Japan. Reuters attempted to reach the ROC chef de mission for comment, but his phone was not answered. The ROC earlier declined to comment on reports that Valieva had returned a positive test. The teenager delivered one of the highlights of the Beijing Games so far when she landed the first quadruple jumps by a woman in Olympic competition. She was one of four ROC skaters who did not appear at their practice sessions...