Blackhawks goaltender Corey Crawford exited Sunday night's game late in the first period after players collided with him and his head hit the post. Cam Ward replaced him in the lineup and he would not return.

After the game, Head Coach Jeremy Colliton confirmed his goalie has been diagnosed with a concussion.

"He has a concussion, so he'll be under the protocol and we'll go from there," he said.

"Of course, we're concerned," the coach added.

Crawford missed a significant portion of last season and this offseason dealing with concussion symptoms. He made his return to the ice on Oct. 18 of this season, having not played since the previous December (Dec. 23, 2017).

"Crow is such a big part of our team," said defenseman Connor Murphy. "To lose him is not good. You just feel for him. In a game like that where there were parts where our goalie is hung out to dry and then for them to take guys crashing on him is not fair either."