Japanese short track speedskater Kei Saito has tested positive in the first doping case of the PyeongChang Winter Olympics Games.[Special coverage]
The Court of Arbitration for Sport (CAS) announced on Tuesday that it has registered its first procedure on doping from the PyeongChang Games.
Saito has tested positive for acetazolamide, a diuretic, in an out-of-competition check, and "accepted on a voluntary basis to be provisionally suspended and to leave the Olympic Village," according to a CAS statement.