In the latest in the Olympics doping saga, it's emerged Russian figure skater Kamila Valieva had three substances found in her drug testing sample.
All three of the substances detected can be used to treat heart conditions.
Lawyers for the 15-year-old have argued her grandfather's heart medication may have caused the positive test result.
Beijing correspondent Patrick Fok told Corin Dann the ordeal has tarnished the games.
