Ottawa Senators defenseman Erik Karlsson left Wednesday's game against the Pittsburgh Penguins with a cut to his lower left leg.
Late in the second period, Karlsson and Pittsburgh's Matt Cooke met along the boards while chasing down a puck. Cooke's left skate appeared to graze Karlsson near the left ankle on the play.
Karlsson had to be helped off the ice as he was unable to put any pressure on his left leg. Between periods the team announced the injury and that he would be out for the remainder of the game.
The reigning Norris Trophy winner has six goals and 10 points over 14 games this season.