Stars defensemen Matt Niskanen and Karlis Skrastins suffered injuries after colliding with each other during warm-ups and will miss at least one game each. Niskanen and Skrastins, who collided prior to the third period of Wednesday night's victory against the Blackhawks, are not expected to play Friday night against the Rangers. Skrastins suffered a broken nose and a chipped tooth and is being further evaluated by doctors. Niskanen has a cut on the palm of his hand.