Kei Saito

Winter Olympics 2018: Canada win inaugural mixed doubles curling; Dutch maintain golden run in speed skating

Canada beat Switzerland to win the inaugural mixed doubles curling, while the Dutch maintained their perfect record in speed skating with a double in the men's 1,500m

Winter Olympics 2018: Japanese speed skater Kei Saito becomes first athlete at Pyeongchang to fail doping test

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