Heiskanen is now the third critical player the Stars have lost for an extended period of time. Tyler Seguin is out for four-to-six months following hip surgery he had done in December, and Mason Marchment has missed a month for face surgery after taking a puck to the face in late December.

Stars defenseman Miro Heiskanen is week to week with a lower-body injury, a setback that leaves the standout from Finland doubtful for the 4 Nations Face-Off tournament.

Miro Heiskanen is week to week for the Dallas Stars with a knee injury. The timeline also means the defenseman will likely miss the upcoming 4 Nations Face-Off, with will take place in Montreal and Boston from Feb.