Russian figure skater blames failed drug test on grandfather's medicine

Kamila Valieva’s lawyers say the Russian skater failed a doping test before the Olympics because of contamination from medication her grandfather was taking.

Veteran IOC member Denis Oswald told reporters the 15-year-old's lawyers “brought some doubts about her guilt,” with their possible explanation of accidental rather than deliberate doping with the heart medication trimetazidine.

“Her argument was this contamination which happened with a product her grandfather was taking," Oswald, a Swiss lawyer who prosecuted previous Russian doping cases, told reporters.