Don't expect another Garden slumber party when the Bruins face the Panthers on Monday afternoon. The game will be a rematch of a 6-4 opening loss at Florida, a result that left the Bruins frustrated.

The Bruins (2-1-0) rebounded with a 6-4 victory over the Canadiens and only got past the Kings 2-1 in overtime on a late wake-up call goal David Pastrnak.

“I think for us it’s all about execution and effort, and that wasn’t the case,” Bruins coach said Jim Montgomery said of Tuesday's loss to the reigning champions. “We have to play ice hockey again. I love that we have emotions, you know. You are a rival. But at the same time we have to be disciplined. We get too many penalties.”

As for the decaf matinee date with the Kings, Montgomery said, “I don’t know why. We usually like to play in the afternoon. It's early in the year, we've had two bad starts and one really good one. I think in the beginning we were slow, just everywhere, right? And I think we were really slow on the runs and I don’t think our intensity was there on the faceoffs.”

Montgomery's message to the Bruins is to wake up and smell the coffee. Just don't drink too many cups.

“I think emotions can easily take over from time to time,” said the left winger Cole Koepke said after practice at Warrior Ice Arena on Sunday. “Especially when the games are so intense and you come home and they have so much history. But I think you just have to try to do everything you can to keep your temper and keep your emotions in check. They will happen, but make sure you use them in a way that doesn’t hurt the team.”

Koepke made his Bruins debut against the Panthers and delivered a 3-point performance against the Canadiens.

“Since then we have been watching videos and talking as a team,” Koepke said of the start. “And I think we've already gotten better in the last few games. And parts of our game are getting better every day.

“We're going back to trying to play fast and hard. And if we don’t get the puck or get it the first time, we’re just going to keep trying to wear the team down and just keep playing.”

The Bruins showed a lot of fight the first time around against the Panthers. But they were without Jeremy Swaymanwho missed training camp and ultimately agreed to an eight-year, $66 million contract and left less than 48 hours before the puck dropped Joonas Korpisalo to fend off the Panthers.

Swayman acknowledged the Bruins' investment against the Canadiens (20 saves) and Kings (33).

Matt Poitras was technically not on the ice when he received an assist from Pastrnak in the game-winning set on Saturday. Poitras found Pastrnak in front of the Bruins' bench and then skipped away as Pastrnak converted a pass Bricklayer Lohrei at 3:03 a.m. overtime. Call it a walkoff or skate-off assist. However, there is no plus-minus for Poitras. That worked Charlie Coyle.

The Panthers (1-2-0) will be missing Aleksander Barkov (lower body). Matthew Tkachuk (illness) missed Saturday's 5-2 loss in Buffalo, the second game of a four-game road trip that began with a 3-1 loss in Ottawa. The trip ends Tuesday in Columbus.

The Bruins begin a three-game road trip with a match against the Avalanche on Wednesday. . . Montgomery on the Bruins' power play: “I thought (against Montreal) our power play was excellent – ​​I thought we could have had three or four. But the last game wasn’t on par.”

Frank Dell'Apa can be reached at [email protected].