The Edmonton Oilers are down a man against the Pittsburgh Penguins.

In the second period Tuesday night, forward Curtis Lazar got tied up with Penguins defenceman Jack St. Ivany and fell into the boards, colliding with former teammate Brett Kulak in the process. Lazar then needed assistance getting off the ice, and did not return to the game.

Here’s a look at that play:

Lazar joined the Oilers on a one-year contract this summer as a free agent coming from the New Jersey Devils. So far this season, he has two goals in 17 appearances with Edmonton, averaging under 10 minutes a night.

The 30-year-old’s exit from the game is especially concerning considering his injury history. Last season, he played just 48 games with the Devils after suffering a knee injury that required surgery. Upon his return to the lineup, by his own admission, he wasn’t performing to the standard he expected of himself, finishing the year with five points. Edmonton took a chance on him this year, and after a goal against the Winnipeg Jets earlier this month, he spoke about getting another opportunity and finding his place with the Oilers.

“It’s the NHL, you can’t take a single day for granted,” he said. “Especially, you said you’re able to line up whatever, whatever happens, happens. But when you get the call, you want to be able to do a job. I know what I can offer and how I can help a team win. And I was glad to just kind of take that next step tonight. Doesn’t matter, you know, if you’re limited or your minutes are limited or whatnot, you still want to make the most of your opportunities. And a lot of that for me, it’s face off, defending, penalty kill.”

Official word on the extent of Lazar’s ailment is still to come. The Oilers currently have a number of players out with injuries, including Connor Clattenburg, Jake Walman, Jack Roslovic, Kasperi Kapanen, and Noah Philp.