Canadiens coach Claude Julien was released from the hospital and will return home to Montreal to rest after having a stent inserted into his coronary artery, the team announced Friday.
Julien was admitted to St. Michael's Hospital in Toronto on Wednesday after experiencing chest pains following his team's 2-1 loss in Game 1 of its first-round playoff series against the Philadelphia Flyers.
Doctors expect a full recovery, the team said.
In a statement issued by the team, Julien thanked the hospital staff and fans for their well-wishes.
Kirk Muller will assume head-coaching duties for the rest of the series against the Flyers. Game 2 is set for Friday.
Julien, 60, is in his second stint coaching the Canadiens. He led the Bruins to a Stanley Cup in 2011.
Since Julien left the NHL bubble in Toronto, he will have to follow quarantine protocol if he wishes to re-enter it.
Team members wanting to return to the bubble must provide four consecutive negative COVID-19 tests carried out over four days. They will be quarantined for at least that time period, and possibly up to 14 days depending on risk of exposure while outside the bubble.
The 12th-seeded Canadiens pulled off an upset over the Pittsburgh Penguins in the qualification round to earn a playoff berth, despite being sellers at the trade deadline.
The Associated Press contributed to this report.