The Norris Trophy winner last season as the NHL's top defenceman, Karlsson was cut by Penguins forward Matt Cooke's skate blade as the two tangled along the boards. The Senators said Karlsson will need surgery.
Star defenceman Erik Karlsson went down with a left Achilles injury when he was cut by a skate blade late in the second period in the Senators' 4-2 loss to Pittsburgh on Wednesday night. An achilles injury is really serious and Karlsson is going to miss the rest of the year.