Weiss suffered an upper-body injury in the second period of Friday's game against the Panthers and won't return, Helene St. James of the Detroit Free Press reports. The origin of Weiss' injury is a bit unclear, but it could be a result of a play in which Weiss hit his head against the boards midway through the second period. Regardless, he will miss the remainder of Friday's contest, and the team will likely provide an update on his status before Saturday's game against the Maple Leafs.