Johan Larsson (upper body) and Conor Sheary (lower body) were both absent from practice and are considered day-to-day. Scott Wilson also remained absent after sustaining a lower-body injury in Toronto on Friday.
That left 16 healthy players on the ice Monday. Here's how the Sabres lined up:
68 Victor Olofsson / 42 Dylan Cozens - 9 Jack Eichel - 23 Sam Reinhart
53 Jeff Skinner - 90 Marcus Johansson - 21 Kyle Okposo
13 Jimmy Vesey - 37 Casey Mittelstadt - 73 Evan Rodrigues
28 Zemgus Girgensons - 17 Vladimir Sobotka - 72 Tage Thompson
81 Remi Elie - 74 Rasmus Asplund - 27 Curtis Lazar
Olofsson earned a look on the top line after a two-goal outing against Toronto on Saturday, the second of which came on assists from Eichel and Reinhart. Krueger referred to the 24-year-old winger as "permanently dangerous" after the win.
Reinhart spoke glowingly about Olofsson's ability on Monday.
"In my eyes, he's been ready for a long time," he said. "It's been great to see the way he's come in and kind of carry on what he brought at the end of last year, because we all know in this locker room the type of guy and the type of player he is.
"You can't say enough about the guy as a player as well. Every opportunity I get when I'm on the ice with him, I'm well-aware. I think we've done a good job of kind of reading off each other and kind of learning each other's abilities."
The rest of the forward group paints a picture of the versatility the Sabres currently have up front. Marcus Johansson remained at center after impressing Krueger with him performance down the middle against the Maple Leafs. That allowed Evan Rodrigues to play the wing alongside Casey Mittelstadt.
With Monday's practice focusing heavily on defensive play, Krueger left the door open for changes to be made on Tuesday. But he spoke positively regarding Rodrigues' ability and willingness to play throughout the lineup.
"We can move him around in the lineup and, without any show of emotion, he'll take the role that you asked of him, whether it was power play the one day, penalty kill the other night, right side, center," Krueger said. "He just goes out and does his job.
"You need some players that can move up and down the lineup and also laterally through the lineup. Evan certainly shows tools that will allow him to do that."
Dylan Cozens also took a few repetitions alongside Eichel and Reinhart after appearing in both of this weekend's games against the Maple Leafs.
"We're really pleased with Dylan's evolution here," Krueger said. "Again, allowing him to learn and grow. We'll be making some hard decisions here end of the week. For now, this is the group and he's still in it.
"… We love the way he's involving himself in the group and looking for his opportunity here. Let's let him continue to push the group for now. But he's definitely here to continue to learn and grow right now."