Russian teen skater Valieva trains after reports of failed drug test

BEIJING: Russia's 15-year-old figure skating sensation Kamila Valieva giggled with her coaches but turned serious for her own routine as she practiced on Thursday at the Winter Olympics despite reports of testing positive for a banned substance.

The teenager was part of the Russian Olympic Committee (ROC) team that won the figure skating team event on Monday, ahead of the United States and Japan. But their medal ceremony was delayed for unexplained "legal reasons".

Russian athletes are already competing without their flag and anthem because of sanctions for past doping violations.

Wearing a navy blue hoodie, black tights with shorts, her hair in a bun, Valieva took to the ice late morning, laughing at rink side but showing total focus when rehearsing her free skate.

Despite the pressure, she performed quadruple jumps in practice, after becoming the first woman to complete one at an Olympics during her team's winning performance on Monday.

Russian media reported on Wednesday that Valieva had returned a positive test, with newspapers RBC and Kommersant naming the drug as Trimetazidine, which is typically used to treat angina.

The ROC and Russian figure skating federation have not commented.

Kremlin spokesman Dmitry Peskov told reporters the only source of information would be the International Olympic Committee (IOC). "We will not join those making noise. We wish our athletes, including Valieva, only gold medals," he said.

The IOC has declined to comment, citing legal reasons, though spokesman Mark Adams asked for patience from other skaters and said officials would work as quickly as possible to sort out the medal ceremony.

With the United States and Japan waiting in the wings for their medals and fans anxious to see their teen