Kotkaniemi (undisclosed) was injured during Monday's 6-1 win over Washington, Sara Civian of The Athletic reports.
Kotkaniemi took a high hit from Lars Eller near the end of the blowout victory and head coach Rod Brind'Amour said that it "doesn't look good." He tallied an assist and a plus-2 rating in 13:20 of ice time before the injury. Carolina is back in action Tuesday against the Lightning and it appears that the 21-year-old will likely miss that game. An update on his status should be available in the coming days.