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.

The rivalry between the Vegas Golden Knights and the Dallas Stars has brewed over the years with a new talking point after their final regular season game of this season on Tuesday.