Seidenberg has surgery on wrist

Boston Bruins defenseman Dennis Seidenberg will miss eight weeks after undergoing surgery to repair a lacerated tendon in his left forearm, general manager Peter Chiarelli announced Wednesday.

The surgery was performed on Tuesday at Newton-Wellesley Hospital.

Seidenberg suffered the injury Saturday during the first period of the Bruins' game against the Maple Leafs when he boarded Nikolai Kulemin. Seidenberg, whose wrist was cut by one of Kulemin's skates in the encounter, left the game and hasn't played since.

Acquired at the trade deadline from the Carolina Hurricanes, Seidenberg has been one of the Bruins' steadiest defensemen, averaging almost 23 minutes in 17 games and registering two goals and seven assists.

The Bruins already are thin on defense, with Mark Stuart (finger) and Andrew Ference (groin) both out of the lineup.

Stuart had surgery on an infected finger last weekend and is expected to miss two weeks, while Ference has missed the Bruins past six games.

Coach Claude Julien said at practice Tuesday that Ference likely wouldn't be available until the playoffs. Captain Zdeno Chara broke his nose Monday against the Capitals but isn't expected to miss any time.

Matt Kalman covers the Bruins for ESPNBoston.com