Eriksson exited the game only seconds after the opening faceoff after he was on the receiving end of a major check by Pittsburgh Penguins defenseman Brooks Orpik. Eriksson had trouble getting to his feet, but made it to the bench before he was taken to the locker room. There was no penalty on the play.
It was announced a few minutes after Eriksson left the ice that he would not return.
Boston's Shawn Thornton is facing a hearing for jumping Orpik later in the first period. Orpik left the game on a stretcher and was taken to a nearby hospital but was released later Saturday night and cleared to travel with the Penguins.
Thornton received a match penalty.
Coach Claude Julien also announced after the game that forward Chris Kelly suffered a lower-body injury due to a slash and will not travel to Toronto with the team.
As a result of Eriksson, Kelly and Thornton out of the lineup until at least Sunday against the Maple Leafs, the Bruins will need to call up players from Providence.
The Bruins did not make anything official, but the Providence Journal reported after the game that forwards Matt Fraser and Ryan Spooner have been recalled from the Providence Bruins and will be available for Sunday's game in Toronto.
Bruins forward Jordan Caron has played only 11 games this season since he's mainly been a healthy scratch.