Japanese Olympic swimmer Hiromasa Fujimori handed temporary suspension after testing positive for ephedrine
Fujimori, who placed fourth behind Michael Phelps and countryman Kosuke Hagino in the 200 metres individual medley at the 2016 Rio Olympics, tested positive for the banned stimulant ephedrine
A fresh Russian doping case overshadowed the team's first gold medal at the Pyeongchang Winter Games on Friday and could lower the country's chances of an early return to the Olympic fold.
Winter Olympics 2018: Slovenian ice hockey player Ziga Jeglic thrown out of Pyeongchang Games for failed drugs test
CAS said Jeglic "accepted an anti-doping rule violation and, as a consequence, the athlete is suspended from competing in the remainder of the Olympic Winter Games Pyeongchang 2018."
Winter Olympics 2018: WADA president Craig Reedie says anti-doping steps at Pyeongchang Games 'running well'
Reedie said: "From WADA's point of view, we have 18 independent observers here, we have been looking at what's happening. We think it's running well and the organisation is efficient here in PyeongChang.
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.