The Sabres have been high on Peterka since the 2020 NHL Draft, when they selected him with the third pick of the second round. General manager Kevyn Adams admitted then that the team had spent the night prior trying to trade into the first round to draft him earlier.
Peterka spent the following year playing professionally in Austria and Germany and standing out amongst his peers at the World Junior Championship. He has created offense with every opportunity since arriving in Buffalo in September, tallying a pair of goals in as many games during the Prospects Challenge and scoring three goals and an assist in five preseason contests.
What impressed Granato about the 19-year-old was his ability to learn small details as camp progressed.
"He absorbs what's in front of him, whether that be the opposition, his linemate, information from the coaches," Granato said. "He internalizes it and he goes to work at it. He's very advanced in that regard but he's still young. I say all this and that is very exciting, but you also do see his age in there as well. I'd say for his age, he's advanced.
"Now, is he advanced enough to be a full-time NHL player? There's going to be ups and downs with any young player. That's just the way the league is, it's the best in the world. But he's advanced for his age, definitely, and he seems to have shown us more of that as camp's progressed."
Whether or not he begins the season in Buffalo, it's fair to say Peterka has positioned himself to be called upon when the time is right.
"Even the last guys who are removed, they're here," Granato said. "We wanted to keep them here as long as we could because we know we're going to use them and they're going to help us."
Here are more takeaways from Saturday's preseason finale.