The goal came seven seconds into the Canadiens' second power play of overtime. Fans pelted the ice with cups and giveaway towels as the players filed off of the ice.
Carey Price stopped 48 shots for Montreal.
Tuukka Rask made 29 saves for the Bruins, who finished the regular season with the best record in the
The Bruins, who never led in the game, outshot the Canadiens 14-6 in the third period and twice rallied to tie the score. The Canadiens picked up a questionable power play at the end of the first overtime and failed to score, but there was little doubt about the call when
Montreal won the ensuing faceoff and worked the puck around to Subban, who slapped it past Rask to end the game.