Montreal Canadiens head coach Dominique Ducharme is isolating at home due to "irregularities" in his COVID-19 testing, the club announced Friday, according to TSN's John Lu.

Ducharme will undergo more tests during the day.

The team confirmed Friday that Ducharme has been vaccinated twice, according to Sportsnet's Eric Engels. The 48-year-old received his second dose June 9 along with the rest of the Canadiens who chose to get it.

Montreal named Ducharme the club's interim head coach upon firing Claude Julien in February. The Canadiens went 15-16-7 after Ducharme took the reins, finishing fourth in the North Division. They then upset the Toronto Maple Leafs in seven games during the first round of the playoffs before sweeping the Winnipeg Jets.

Game 3 of the Stanley Cup semifinal between the Canadiens and the Vegas Golden Knights is scheduled for Friday night. The series is tied 1-1.

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