Boston trailed by two goals entering the third period, but goals from Tyler Seguin and Chris Clark propelled them to a 2-1 victory - their second straight over the Montreal Canadiens - at the Bell Centre on Monday night in Montreal.
Mike Cammalleri scored the first and only goal for Montreal (1-5-0) at 15:33 in the first period, giving the Canadiens a lead that would hold through two periods. Cammalleri's goal was assisted by Phil Desimone.
Seguin scored the game-tying goal for Boston (3-0-1) at 4:17 in the third period on a power play, with assists coming from Jordan Caron and Matt Bartkowski. Clark potted the game-winning tally at 13:15, assisted by Max Suave and Steve Kampfer, to give Boston its third consecutive preseason win.
Tuukka Rask played the entire game in net for Boston, recording 31 saves on 32 shots for a pristine .969 save percentage. Carey Price had 30 saves in the loss for Montreal.