NHL players who test positive for coronavirus and are fully vaccinated may only have to isolate for five days as part of changes to the league's health protocols.
Previously, any player or staff member to record a positive test would have to isolate for 10 days.
Outbreaks among teams this month caused the league to begin its Christmas break early and pause all games that involved cross-border travel between the United States and Canada.
However, following updated guidance from the USA's Centers for Disease Control and Prevention, the NHL and the National Hockey League Players' Association (NHLPA) agreed to modify regulations.
Players and team operations staff who test positive will now only have to isolate for five days, or, if they develop a fever, "until their fever resolves".
Asymptomatic individuals or those with improving symptoms will be cleared to return to practice and games if they provide a test that is either negative or falls within certain parameters.
They will also require medical clearance from team doctors and the permission of their local health authority. They must also wear a mask around others for another five days, except for during practice and games.
NHL medical experts will review the changes to the measures on or before January 12.