It's Russia's second case after curler Alexander Krushelnitsky has been found guilty of an anti-doping violation testing positive for the banned substance meldonium days ago. Besides, Slovenian hockey player Ziga Jeglic and Japanese speedskater Kei Saito also left the games after testing positive.

In the Phoenix Snow Park, Canadian Kelsey Serwa claimed the gold medal of freestyle skiing women's ski cross. She outclassed compatriot Brittany Phelan and Swiss skier Fanny Smith in the event's big final to storm to the finish line first.

"It is very cool. It is very surreal to be the best in the world at something you put your heart into," said Serwa.

It was Canada's 25th and 26th medal at PyeongChang 2018, matching the National Olympic Committee's single Winter Games record, set in Vancouver in 2010.

Elsewhere, Sweden pocketed biathlon men's 4x7.5km relay gold medal. The Swedish team, teamed up by Peppe Femling, Jesper Nelin, Sebastian Samuelsson and Fredrik Lindstroem, clocked a time of 1 hour, 15 minutes and 16.5 seconds to sit atop the podium.

There was also win for Kjeld Nuis of the Netherlands, who has become a double Olympic champion after adding gold in speed skating men's 1,000m to the 1,500m title he won last week.

Norway now leads the medals table with 13 gold, 14 silver and 10 bronze medals, followed by Germany on 13 gold, 7 silver and 6 bronze medals.

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