The Tampa Bay Lightning moved first in the NHL's Eastern Conference with a 4-1 win over the Vancouver Canucks on Tuesday.
Alex Killorn struck a double for Tampa Bay, while Ben Bishop made 27 saves as the Atlantic division leaders climbed to the top of the East.
The win - the Lightning's eighth in a row at their Amalie Arena - came after a goalless first period.
Valtteri Filppula broke the deadlock in the 14th minute of the second period before Killorn and Brian Boyle scored in the early stages of the third.
That meant Frank Corrado's goal was little more than a consolation for the Canucks, before Killorn struck again to seal an important win for the Lightning heading into the league's All-Star break.
Defeat for Vancouver ended their three-game winning streak.
Montreal are just three points behind Tampa Bay in the Eastern Conference, after the Canadiens recorded a 2-1 overtime win against the Nashville Predators on Tuesday.
PK Subban scored a powerplay goal with just 52 seconds to play.
The Predators led 1-0 thanks to Mike Ribeiro's second-period goal, but Alex Galchenyuk's effort forced overtime.
The Philadelphia Flyers and the New York Rangers also won in overtime, producing 3-2 wins over the Pittsburgh Penguins and Ottawa Senators respectively.
The Edmonton Oilers produced a 5-4 shootout win over the Washington Capitals, with late goals in the third period from Teddy Purcell and Ryan Nugent-Hopkins keeping Edmonton alive.
Evgeny Kuznetsov struck the winner as the Capitals rued their late collapse.
The Detroit Red Wings beat the Minnesota Wild 5-4 also after a shootout on Tuesday.
The Boston Bruins beat the Dallas Stars 3-1 and the Chicago Blackhawks thrashed the Arizona Coyotes 6-1.