2:15 p.m. ET, February 16, 2022
US anti-doping chief questions Valieva's drug regimen to "increase endurance and reduce fatigue"
From CNN's Selina Wang, Simone McCarthy and Hannah Ritchie
Kamila Valieva, the teenage
Russian figure skater at the center of a doping controversy roiling the
Beijing Olympics, had three substances that can be used to aid the heart in her testing sample, according to a report in the
New York Times, which cited an exhibit filed in a Sunday hearing by the Court of Arbitration for Sport (CAS).
Two of those substances, Hypoxen and the supplement L-carnitine, are not banned by the World Anti-Doping Agency (WADA), which regulates the use of drugs in international sport.
Valieva declared both of these on a doping control form, according to a court application allegedly filed by WADA in a case raised after it came to light that Valieva tested positive for a banned substance in December.
The London-based Dossier Center, an investigative website run by an exiled Russian businessman, published part of the WADA court application online and it was reviewed for CNN by Travis Tygart, head of the United States Anti-Doping Agency (USADA).
"It raises a whole host of questions that have yet to be determined and what appears to be the case of a pretty deliberate attempt to use substances in order to enhance performance," Tygart said.
An emotional Valieva came out at the top after the short program of the women's singles competition on Tuesday. She will compete in the second portion of the event — where she is the favorite for gold — on Thursday.
You can read the full report below.