Blackhawks captain Jonathan Toews is day to day with an upper-body injury after he absorbed a hard hit at Pittsburgh.
Toews was drilled by Penguins defenceman Brooks Orpik with 6:30 remaining in the second period on Sunday night. The two were going for a loose puck.
Toews got up slowly and was seen holding his left arm on the bench before heading down the runway.
Blackhawks coach Joel Quenneville says he doesn't think the injury is serious, but the team would know more on Monday.
The Blackhawks, who clinched a playoff berth on Saturday, are already without star forward Patrick Kane, who is out for the rest of the regular season with a lower-body injury.
Toews has 28 goals and 68 points this season.