MOSCOW, Jan 28 Head coach of the Ukrainian men's biathlon team Yuraj Sanitra sent on self-isolation in Beijing, where he arrived with the team to participate in the Olympic Games, after two positive tests for coronavirus, according to biathlon.com.ua. On Thursday, Sanitra received a positive test result for COVID-19, which he passed at the Beijing airport upon arrival . Sanitra's second antigen test at the airport came back negative. He later had two additional PCR tests, both of which came back positive.