Robin Lehner allowed three goals on 26 shots, all of which came on breaks for the Canadiens. Jeff Petry's power-play goal deflected in off the stick of Sabres defenseman Rasmus Ristolainen, Alex Galchenyuk scored off a rebound on a 2-on-1 rush and Paul Byron scored on a shorthanded breakaway.
The Sabres felt like they were still in the game up until Byron's goal, which made it 3-0 with 11:33 remaining in the third period. It was a turnover at the blue line that led to the Montreal defenseman going free for a breakaway, and he tucked a backhand shot between Lehner's pads.
"We totally had them in the third," Lehner said. "That was a bad break for us I think. It turned into a breakaway and I think I had him. I think I played him well. It went off my stick, I think I had my stick there five-hole too, but it managed to squeak in.
"It's unfortunate, but I think the guys had a hell of an effort today."