Kamila Valieva’s Olympic case heads to court with Russian doping in focus

• Teenager won team gold despite positive for banned substance
• Usada wants justice for fellow competitors denied medals

The Court of Arbitration for Sport (CAS) has begun hearing Russian figure skater Kamila Valieva's doping case, a scandal that rocked the sport and cast a shadow over her country's already embattled anti-doping system.

Nineteen months after Valieva helped the Russian Olympic Committee (ROC) win gold in the team event at the 2022 Beijing Games despite testing positive for a banned substance, her fellow competitors are still awaiting justice.