FILE PHOTO: Figure Skating - World Figure Skating Championships - South of France Arena, Montpellier, France - March 27, 2022 Vincent Zhou of the U.S. performs during the gala REUTERS/Juan Medina/File Photo
(Reuters) - The global anti-doping system is "failing athletes", American figure skater Vincent Zhou said on Monday ahead of Russian Kamila Valieva's doping case, which will be heard by the Court of Arbitration for Sport (CAS) from Tuesday to Friday.
Russian Valieva tested positive for the banned substance trimetazidine at the Russian national championships in December 2021 but the result was only made known on Feb. 8, 2022 a day after she helped her team win gold at the Beijing Olympics.
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