UPDATE: Matt Cooke Contrite as Skate Severs Erik Karlsson’s Achilles’ Tendon 

Erik Karlsson, Ottawa Senators

HOCKEYTALK NEWS — FEBRUARY 13, 2013 — PITTSBURGH — Ottawa Senator Erik Karlsson suffered a cut from the left skate of Pittsburgh Penguins forward Matt Cooke late in the second period Wednesday night at the Consol Energy Center.

Update 10:30PM ET: Karlsson suffered a severed Achilles’ tendon, as Hockeytalk earlier anticipated.

Karlsson, winner of the 2011-12 Norris Trophy, was immediately hobbled, his left leg recoiling in a manner resembling a severing, partial or complete, of a tendon, although no preliminary report is has been released.

Cooke, who has a long of disciplinary record with the NHL but has changed his abrasive style over the past two seasons, was not penalized on the play.

“Obviously, I feel terrible about it,” said a contrite Cooke afterward.  ”I’m not trying to do that, obviously.”

More on this story as it develops.