If Rust does return tomorrow, he said the biggest challenge will be just trying to keep it simple early on.
"Obviously, the game happens fast out there, and it's only getting faster as the year goes on," he said. "So I think for me, only having played one-and two-thirds games of the season, just kind of getting out there, working hard. Got to keep things simple early and just go from there."
Rust scored 22 goals last season after leading the team with 27 tallies in 2019-20, and could provide a spark to a Penguins offense that is still without Sidney Crosby (COVID-19 protocol) and Evgeni Malkin (knee surgery).
"I think he's a really important player that, until you realize you don't have him, you don't realize how good he really is," Reirden said of Rust. "But just so you know that in our room, we weren't forgetting about having him. He certainly brings a ton of different attributes to our team that allows us to play Penguins hockey.
"The way he pursues pucks, the speed he plays with, his ability to make plays in tight areas…we use him on the power play, 4-on-4…obviously he's been a guy that's killed penalties in the past when we get a little short-handed in terms of personnel. He's able to do that. He's a guy that is extremely valuable to us, and certainly looking forward to having him back in the lineup as soon as he's able."
Rust sustained the injury against the Florida Panthers on Oct. 14, when he collided with defenseman MacKenzie Weeger at the blue line at the start of the third period.
"Tried to make a move to the inside," Rust said of the play. "He read me really well. He caught me with real nice hit. Just kind of had an awkward collision and ended up getting hurt. Just unfortunate."