The Golden Knights start a four-game road trip against the Islanders. They also play the New Jersey Devils at Prudential Center on Friday, the New York Rangers at Madison Square Garden on Sunday and the Columbus Blue Jackets at Nationwide Arena on Monday.
"He's great at face-offs, he's a good two-way player, and we haven't seen a lot of him," Gallant said of Stastny. "He's been out for a long time, but he's a very important player. We think he's an elite two-way player and he brings a lot to our club."
Vegas has turned things around lately, going 8-2-0 in 10 games since Nov. 21 after starting the season 9-12-1. Stastny played in the first three games and didn't have a point before being injured in the loss to the Sabres.
He was undercut by a sliding Jack Eichel late in the third period and his right knee buckled underneath him.
"I felt a pop right away," Stastny said. "It was almost a like a chop block in football, so I felt a pop. It just felt loose. It's the end of the game, so your adrenaline is still going, but the minute I got off the ice and took a couple steps, I knew. I had something like this in the past and I knew the extent of where the injury was. I was more worried that it could be an ACL and be done for the season, but I was fortunate it wasn't that."