The result hasn't been confirmed; Russian news outlets are reporting that Krushelnitckii's "A" sample had tested positive for meldonium in a preliminary test, and that his "B" sample would be tested to confirm or refute the result.
"There was a really good pre-games testing system in place since April where, for example, the Russian athletes were tested to a significant level more than others". No date has been set for a hearing.
"The benefit of taking meldonium in view of performance enhancement in athletes is quite speculative and is discussed without sound scientific evidence". "Only a insane person takes banned substances before a competition, before the Olympics". It's the drug for which Maria Sharapova tested positive, resulting in a lengthy ban from tennis.
The drug he is said to have taken, meldonium, increases endurance and helps recovery.
Following the latest Russian Winter Olympics doping scandal, the International Olympic Committee have responded - saying that an announcement will be made soon as to what punishment will be handed out. On Monday, officials took the "B" sample, and hours later, the Court of Arbitration for Sport formally opened an investigation into Krushelnitckii. "We know that our athlete is not guilty", federation president Dmitry Svishchev said.
The World Curling Federation says it learned of the preliminary test result through media reports; a spokesman said the governing body will not comment at this time.
Krushelnitsky's A sample tested positive for meldonium on Sunday.
The IOC said it "cannot communicate on individual cases while the procedure is still ongoing", because "doping testing and sanctioning at the Olympic Winter Games PyeongChang 2018 is independent from the IOC".More news: Australian PM Turnbull meets deputy to fix sex-scandal split
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The Russians had been hoping that a clean record at Pyeongchang would persuade the International Olympic Committee (IOC) to allow them to march at the closing ceremony on February 25 with the Russian flag and in national uniform.
The skip of the Russian women's team, Viktoria Moiseeva wanted to comfort Krushelnitsky and Bryzgalova but "we thought that there are no words to comfort now".
"We have stayed away from those kind of topics for a long time", he said.
Fitness is even more important in mixed doubles, the event Krushelnitsky was competing in.
"First of all, I want to apologise to my partners on the Olympic team, our delegation and all the fans for not being able to protect ourselves and Nastya from the problems that we faced today", Krushelnitckii said in a statement, sent to insidethegames.
Nedregotten revealed his subsequent shock at learning that Krushelnitsky had tested positive for a banned substance. "It's not like you don't need any muscles", said Swiss curler Silvana Tirinzoni, whose team beat the Russian women's team 11-2 at Monday's round robin. "It's not about me to make those kind of decisions".
A curler's performance enhancing drug of choice is an ice cold pint of their favourite beer.