It was the first time in three years the 23-year-old forward wasn't rehabilitating an injury when trying to prepare for the upcoming season.
"It's new having the body feel good," Allison said during Philadelphia Flyers development camp in August. "It's nice. You're able to put in the work that you need to every day and you're not thinking about it, you're not mentally stressed about whether your leg, shoulder, ankle, whatever it is, can support you. You just know it's going to be there."
Unburdened physically and mentally, Allison displayed the size (6-foot-2, 205 pounds), strength and dynamic shot that earned him his first NHL opportunity last season.
"He's a terrific, enthusiastic kid, very personable, loves the game," Flyers senior advisor to the general manager/player development Mike O'Connell said. "Right off the bat, watching him his first couple of workouts, it was really his shot that impressed me. He's got an incredible release, NHL shot. ... I think he's got a really good chance to be an outstanding NHL player. Use that shot, get him in the open spots, get him to understand where his spot is on the ice, where he's going to score. He looks like a scorer to me, and I'm excited about his future."
It's a brighter future in part because Allison, a second-round pick (No. 52) in the 2016 NHL Draft, finally is injury-free.