Boston Bruins goaltender Tuukka Rask left Tuesday's game against the Columbus Blue Jackets and suffered a concussion after he took a shot to the head from Columbus Blue Jackets forward Emil Bemstrom.

Bruins coach Bruce Cassidy confirmed the diagnosis following the team's 3-0 loss.

Rask, who suffered a concussion last season before the all-star break, left the game after the incident took place early in the first period.

Rask had a 17-4-6 record with a .925 save percentage and 2.27 goals-against average heading into the game.