A Russian athlete is suspected of breaching doping rules at the PyeongChang Winter Olympic Games.
Russian curlers said that a coach on their team told them late Sunday that mixed doubles bronze medalist Alexander Krushelnitsky tested positive for meldonium, a substance banned in 2016.
Russian Curling Federation president Dmitry Svishchev would not confirm the name of the athlete.
The International Olympics Committee said on Monday that a second sample from the athlete had been taken and results would be available in 24 hours.
If confirmed positive by the second test, the incident could keep Russia s team from being reinstated and marching under the national flag at the closing ceremony.
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