Russian figure skater Kamila Valieva listed two legal substances used to improve heart function on an anti-doping control form she filled out before her drug case at the Olympics erupted, according to documents submitted in her case.
The World Anti-Doping Agency filed a brief in the Valieva case stating that the existence of L-carnitine and Hypoxen, though both legal, undercuts the argument that a banned substance, trimetazidine, might have entered the skater's system accidentally.
