Kei Saito, a member of the Japanese 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. As reported by Kyodo News earlier, the 21-year-old Saito, 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.In a hastily arranged press conference, the Japanese Olympic Committee said Saito was te…READ FULL ARTICLE