The ongoing doping controversy surrounding Russian skater Kamila Valieva took a new turn Wednesday after media reports in the U.S. claimed that the 15-year-old had three substances used to treat heart conditions in the sample which triggered the scandal.
Valieva topped the short program Tuesday to put herself in prime position to win the women's singles competition when it concludes Thursday, bursting into tears afterward and refusing to talk to journalists.
Valieva took center stage at the Olympics after the Court of Arbitration for Sport (CAS) ruled she should not be suspended despite failing a drugs test in December, although she has not been cleared of doping and still faces further investigation.
Games testing authorities said last week that the teenager tested positive for trimetazidine, a drug used to treat angina but which is banned for athletes by the World Anti-Doping Agency (WADA) because it can boost endurance.
The New York Times reported that her sample also contained the substances Hypoxen and L-Carnitine. They are not on WADA's prohibited list.
The report said the disclosures concerning the different substances were contained in a document submitted at Sunday's CAS hearing that ended with the controversial decision to allow Valieva to continue competing in Beijing.
Senior IOC member Denis Oswald had told reporters Tuesday that Valieva informed the CAS panel that she tested positive because of "contamination" from her grandfather's medicine.
The New York Times report said the grandfather provided a prerecorded video message to a hearing with Russian anti-doping officials on Feb. 9 in which he said he used trimetazidine.
Valieva's mother told the same hearing her daughter took Hypoxen for heart "variations," the Times said.
Russia's anti-doping agency RUSADA suspended the young skater after the February 9 hearing, only for her to win an appeal. CAS then agreed that she should be able to carry on at the Olympics, citing "exceptional circumstances" including her age.
Valieva has already won one gold in Beijing, playing a starring role to lead Russia to team gold last week, before the doping controversy erupted.
The medals ceremony for that will not take place in Beijing because of the saga. Likewise, if Valieva comes in the top three after Thursday's second half of the singles competition there will also be no ceremony – unprecedented in Olympic history.
It puts the spotlight once more on doping by Russian athletes, who are not allowed to take part at these Games under their flag because of a state-sponsored doping program that reached its peak at its home 2014 Sochi Olympics.
Some of Valieva's fellow skaters made plain their unhappiness that they had to compete against her.
"I don't know every detail of the case, but from the big picture obviously a doping athlete competing against clean athletes is not fair," the 16-year-old American skater Alysa Liu said.
There was also sympathy.
Alexia Paganini, competing for Switzerland, said: "I definitely feel sorry for her. She is pretty much a product of the adults around her."
But she added: "Rules are rules and they should be followed."
International Olympic Committee spokesman Mark Adams said: "She is at the center of a lot of speculation and it must be very tough for her."