While the Islanders received good news about Barzal on Saturday, Lamoriello confirmed that forward Oliver Wahlstrom will indeed miss the remainder of the regular season.
"He will not be back this season, but he will definitely be ready before the summer is over," Lamoriello said.
Wahlstrom has been out with a lower-body injury since Dec. 27. The 22-year-old has 16 points (7G, 9A) in 35 games this season.
"It's extremely disappointing," Head Coach Lane Lambert said of Wahlstrom's injury. "He was really coming along and adds a certain element to our hockey team. We've missed him and it's just a matter of him getting better and getting ready for what's to come next."
Noah Dobson, who was drafted one pick after Wahlstrom in the 2018 Draft and is a close friend, said he's been trying to support Wahlstrom during his recovery.
"You just try and be there for him," Dobson said. "Obviously injuries happen, it's part of the game, but it's definitely disappointing for him, I've spent some time with him, go out for dinners and stuff and keep his spirits up. He's going to be working hard and he'll come back stronger for sure."