Tim Thomas will start in net for the first time since Feb. 2, to be backed up by Matt Dalton, who was recalled from the team's ECHL affiliate in Reading, Pa. Rask is considered day to day and will make Boston's upcoming road trip. Thomas has not been on the winning end of a start since Jan. 14.
Dany Sabourin, the goalie at the Bruins' AHL team in Providence, had to be placed on re-entry waivers because of his age/experience before being called up. If he clears waivers at noon Friday, he will go on the road trip as Thomas' back-up until it is determined Rask can play.
Bruins GM Peter Chiarelli told 98.5 The Sports Hub that Thomas would have played in Thursday's game anyway.
Bergeron skated Thursday morning for the first time since Canada's gold medal win at the Olympics Sunday. After skating, Bergeron said he will not play against Toronto and was still day to day. He said he felt "pretty good."
Bergeron, who leads the Bruins with 37 points, missed the team's 4-1 loss to Montreal Tuesday night and didn't practice Wednesday. He suffered the injury early at the Vancouver Olympics and played through it.
Also, Bruins defenseman Andrew Ference is out five to seven days with a groin injury.
The Bruins' next game is Saturday on Long Island against the New York Islanders.
Matt Kalman covers the Bruins for ESPNBoston.com.