Nashville Predators captain Mike Fisher exited Thursday night's Game 4 of the Western Conference final with an undisclosed injury and did not return.
Fisher appeared to be hurt late in the third period of Nashville's 3-2 overtime loss to the visiting Anaheim Ducks. He did not play in the extra session.
Predators coach Peter Laviolette said after the game that the 36-year-old Fisher was under evaluation.
Fisher got tangled up with Ducks defenseman Josh Manson, who jumped high in the air to swat a puck away from the front of his net.
Manson had his glove pressed down on the back of Fisher's helmet as he went airborne and his momentum carried him forward. Manson tumbled over a kneeling teammate Hampus Lindholm while his left leg made contact with the side of Fisher's head.
Fisher, who is married to singer Carrie Underwood, had 18 goals and 24 assists during the regular season but has been held without a point in the playoffs.
The series is tied at two games apiece with Game 5 set for Anaheim on Saturday night.