The bad news just keeps getting worse for the Bruins.

This morning the club announced that defenseman Dennis Seidenberg underwent successful surgery to repair a lacerated flexor carpi radialis tendon in his left forearm. Seidenberg hadn’t played since he was sliced by an opponent’s skate in a collision Saturday night in Toronto.

The prognosis is for Seidenberg to miss eight weeks, thus his season is done — barring a major miracle by the Bruin in the playoffs, if they make it. Without Seidenberg, their odds of advancing just one round just shrunk to the size of a pea. Since joining the Bruins, Seidenberg has been close to the team lead in minutes played and has played a key role on the power play and penalty kill.