Jason Zucker will be out "longer-term" with a lower-body injury, coach Mike Sullivan said Thursday.
The forward was helped off the ice after crashing into the boards in front of the Pittsburgh bench 10:03 into the third period of a 3-2 overtime win against the Washington Capitals on Tuesday.
"Obviously, he was frustrated with the injury and it was just kind of an unfortunate circumstance how he went into the boards," Sullivan said after practice Wednesday. "… He's a good pro, he understands the game and regardless of what kind of news we get, we know he's going to work his tail off to get back as soon as he can."
Zucker has seven points (four goals, three assists) in 17 games this season.
The Penguins visit the Capitals on Thursday (7 p.m. ET; NBCSWA, ATTSN-PT, TVAS, ESPN+, NHL.TV).