Kamila Valieva: Cas clearance for skater sparks anger at Winter Olympics

• Cas clears 15-year-old to compete in individual event
• Russian had tested positive for a banned angina drug

The Beijing Winter Games descended into acrimony and farce on Monday after the 15-year-old Russian skater Kamila Valieva was cleared to compete again despite a positive doping test hanging over her head.

In a highly-anticipated ruling, the court of arbitration for sport said there were exceptional circumstances" surrounding Valieva's case, and that banning her while it was ongoing would cause her irreparable harm".