Winnipeg Jets forward Nikolaj Ehlers needed assistance getting off the ice during the second period of Saturday's tilt against the Chicago Blackhawks after an incidental collision with an referee.
Ehlers didn't emerge for the third period.
The 29-year-old recently returned from a foot injury that caused him to miss two games. Winnipeg has two games remaining on its schedule before the playoffs.
Ehlers has 63 points in 68 contests this season.