An anti-doping case has been opened against Russian medal-winning curler Alexander Krushelnitsky, says the Court of Arbitration for Sport (CAS).

Krushelnitsky, who won bronze with his wife in the mixed doubles at the Winter Olympics on Tuesday, is suspected of testing positive for meldonium.

CAS opened a case against the 25-year-old following a request from the International Olympic Committee (IOC).

A hearing date has not been set and a B sample result is expected today.

More than 160 competitors are in the OAR team as their country was banned from the Games over “systemic” doping at Sochi 2014, which they hosted.