During the first period of Sunday's match up between Pittsburgh and Boston, Pens' forward Dominik Kahun suffered an upper body injury, following a trip near the boards in which he fell backwards onto his head.

See the fall here;

Following the Penguins come from behind win, Kahun would be evaluated by medical staff. It was officially announced by Pens' Head Coach Mike Sullivan on Monday that Kahun suffered a concussion from the head contact to the ice, and will be out of the line up while he undergoes concussion protocol.

There is no return date for Kahun at this time, but as he has provided 27 points to the team thus far, his offensive contributions will surely be missed.