The Bruins will have a huge hole to fill on their blue line for the rest of the season.

The team announced defenseman Dennis Seidenberg will miss the remainder of the season after suffering a torn ACL and MCL in his right knee during their win against Ottawa last night. Bruins GM Peter Chiarelli said it’ll take him 6-8 months to recover from the injury.

Seidenberg was hurt after getting his leg tangled up with Sens forward Cory Conacher. He left the game and did not return and, as we’ve found out today, for good reason.

In 34 games this season, Seidenberg had one goal and nine assists while averaging over 21 minutes per game. Losing him for the season after losing Andrew Ference over the summer in free agency to Edmonton makes the Bruins defense look very green.