Teenage Russian figure skater Kamila Valieva will continue to compete in the Games after being cleared by the Court of Arbitration for Sport. The 15yo athlete tested positive for trimetazidine – a chest pain drug that can be used to boost endurance – during the Russian Figure Skating Championships in December. Yesterday, the court ruled in Valieva’s favour because she’s under 16yo, and she didn’t have time to dig into the test result before the Games began because the result wasn’t disclosed until last week. She has already competed and helped Russia (aka the Russian Olympic Committee) win the team figure skating event in Beijing. Her positive result means awarding that gold medal is under review, and it could take time. “This appears to be another chapter in the systematic and pervasive disregard for clean sport by Russia,” US Olympic boss Sarah Hirshland said after the decision. All eyes will be on Valieva – she’s the favourite to win in the women’s singles competition that starts today.