Japanese Olympic speed skater tests positive for doping: CAS

Japanese short-track speed skater Kei Saito has tested positive for doping at the Pyeongchang Olympic Games, the first doping case of the Games, the Court of Arbitration for Sportsaid Tuesday.

Saito, 21, failed an out-of-competition test, the anti-doping authority said in a statement, adding that he tested positive for acetalozamide, a banned diuretic which is considered as a masking agent.

It said the Japanese Olympic Committee had scheduled a press conference Tuesday to address Saito's adverse finding.

The CAS statement said Saito had left the athletes' Olympic Village voluntarily and would be provisionally suspended from the Olympics and other competitions pending a full investigation.

Saito, a human biology student whose sister Hitomi is also competing in Pyeongchang, was a member of Japan's 3,000m relay team that finished third at the 2013 and 2014 world junior championships.