Toronto outshot Montreal 16-2 in the second period.
Jake Evans put the Canadiens up 1-0 at 3:01 of the first period when he scored on a breakaway after Brodie mishandled the puck and fell at the offensive blue line.
Newhook made it 2-0 at 1:10 of the second, scoring at the side of the crease off a pass from Juraj Slafkovsky. Slafkovsky was playing his first game since Jan. 15, when a lower-body injury ended his rookie season.
“Not fun game for the goalies, especially for the Toronto goalies,” Samsonov said. “… I try to forget about what’s going on, sometimes we have these games, it’s not too fun but it’s OK. We win, we have two points, so I’m so excited about the results.”
Caufield had a goal overturned at 5:50 when Toronto challenged for offside.
“We’re a young team, and [these are] some good learning lessons to go through on how to manage the highs and lows of the game,” Canadiens forward Kirby Dach said. “… You’re going up 3-0 and the goal gets called back, and we don’t know how to push back or answer after that. There’s emotional swings in the game, and we have to find ways to just keep moving forward and rolling the way we were rolling. We kind of took our foot off the gas pedal.”
The Maple Leafs cut it to 2-1 at 7:46 when Noah Gregor shot past Allen’s glove from the left face-off dot. It was Gregor’s Toronto debut; he signed a one-year, $775 000 contract after attending training camp on a professional tryout.
NOTES: Matthews became the fifth player to score 300 goals with the Maple Leafs, joining Mats Sundin (420), Darryl Sittler (389), Dave Keon (365), and Ron Ellis (332). ... Matthews has 12 goals in season openers, passing Babe Dye (nine) for the most in Toronto history. ... Maple Leafs forward David Kampf played in his 400th NHL game, finishing with one shot on goal in 13:08. ... Toronto forward Fraser Minten, a second-round pick (No. 38) in the 2022 NHL Draft, made his NHL debut. He played 11:32, had one shot on goal and was minus-1. … Newhook became the eighth player to score multiple goals in his Canadiens debut.