Kei Saito, a member of the Japan short track speed skating team at the Pyeongchang Winter Olympics, has tested positive for acetazolamide and been provisionally suspended, the Court of Arbitration for Sport said Tuesday.
It is the first registered case to CAS by the International Olympic Committee at these games. Saito, 21, a reserve on the men's 5,000-meter relay team, failed an out-of-competition test in the lead-up to the games, CAS said in a statement.
The Japanese Olympic Committee said Saito was tested at the athletes' village in Gangneung on Feb. 4, and was informed three days later by the IOC that the results came out positive for an A sample.