MONTREAL (Reuters) - Max Pacioretty's overtime goal capped a three-goal rally and sent the Montreal Canadiens to a 3-2 win over fierce rivals the Boston Bruins on Saturday.

The win allows the Canadiens to leapfrog the Bruins in the Northeast Division.

The Bruins led 2-0 on two second period goals by Patrice Bergeron until Scott Gomez scored a lucky goal with a weak shot with 2:22 remaining that appeared to rebound off a defender's leg before sliding past goalkeeper Tim Thomas.

"He (Thomas) was playing so well and then I scored on that shot," said Gomez. "I wasn't actually trying to shoot. I was trying to pass the puck to (Mathieu) Darche and it went through."

Brian Gionta leveled the score for Montreal with 48 seconds left, redirecting a cross into the net with his skate.

"They found a way to win and we found a way to give it to them," Bruins coach Claude Julien said.

Montreal's Mathieu Darche batted a puck past Thomas with a high stick with 12:03 remaining in the third period but the goal was disallowed following a video review.

The call sparked the Canadiens as they dominated the third period outshooting Boston 18-8 and recorded the only five shots in overtime.

"They dominated us for two periods, but I thought we worked hard in the third," said Canadiens head coach Jacques Martin. "The scoring chances were 9-3 for them after two periods, but it was 13-11 for us at the end of the game."

(Reporting by Mike Mouat in Windsor, Ontario, Editing by Alastair Himmer)