"Geno's making really good progress," Sullivan said. "We're encouraged by it. So every week, the limitations are less and less, and that's real encouraging. Rusty and Jake are making progress as well.
"So all three of them were on the ice. They're at where we expected them to be. We'll see where it goes moving forward. They're all tracking the way our medical team had anticipated, and our hope is that they just continue to make progress."
2. Lines and D-pairs
The Penguins stuck with the same workflow they've used for the past two games with Guentzel sidelined, a 4-2 victory in Washington on Friday and a 1-0 shutout of Anaheim on Saturday:
Rodrigues-Crosby-Kapanen
Zucker-Carter-Heinen
Aston-Reese--Blueger-McGinn
O'Connor-Boyle-Simon
Dumoulin-Letang
Pettersson-Marino
Matheson-Ruhwedel
3. Defending with a vengeance
The Penguins go into Tuesday's matchup with Montreal having won four straight games despite being without some of their best players, which means there are a lot of positives to take out of the team's play right now. But what's particularly notable is that the Penguins have given up just four goals over that span.
And in the bigger picture, the Penguins are the NHL's third-stingiest team, giving up an average of 2.44 goals-against per game. Sullivan said that what stands out to him is how the players have been committed to defending the scoring areas - what they call "the good ice" - with a vengeance, a sentiment that's shared by goaltender Tristan Jarry.
"I think we're just going out there with a collective effort," Jarry said. "The guys are doing a great job blocking shots, and I think that's something that we wanted to step up coming into the season, just having a lot more blocked shots this year and being able to limit shots on net."