David Desharnais scored the winner with his second goal of the game less than four minutes after Max Pacioretty tied it earlier in the third period, lifting the Montreal Canadiens to a 4-3 comeback win over the Boston Bruins in a matchup of the Eastern Conference's top teams Sunday night.
Tomas Plekanec also scored for the Canadiens, who jumped two points ahead of Boston for first overall in the conference.
Tyler Seguin, Patrice Bergeron and Dougie Hamilton had Boston's goals.
Peter Budaj made 31 saves for Montreal, which played the first of five straight road games.
Tuukka Rask stopped 22 shots for the Bruins, who had a six-game winning streak halted.
Pacioretty's slap shot from the point beat Rask, who appeared to be screened, and tied the game 3-all 5:31 into the third period. Desharnais scored out of a scramble in front with 10:43 to play.
Boston pulled Rask with 70 seconds left for an extra skater, but Budaj stopped Seguin's bid from close in the final seconds.