David Krejci/By S. Bradley

David Krejci/By S. Bradley

It took the Bruins more than 40 minutes to wake up and support the yeoman efforts of goaltender Anton Khudobin Sunday night.

When David Krejci and his linemates finally came to life, the center recorded a goal and an assist and the Bruins had a 2-0 win that pulled them back within one point of Montreal for first place in the Northeast Division.

Toronto and Ottawa are four points behind the Bruins.

Nathan Horton also had one goal and one assist for the Bruins, who finished the weekend 1-1-0. Krejci scored one goal by paying the price in front of the Buffalo net and then set up Horton’s goal with a sweet backhand feed to the slot. If the Bruins are going to be serious contenders for the Stanley Cup this season, regardless of what deals general manager Peter Chiarelli makes before the trade deadline Wednesday, David Krejci has to play like an elite player. Maybe Sunday was the start. Here’s my CBS Boston column on Krejci.

•The Bruins are off Monday while most of the team takes part in Shawn Thornton’s Cuts For a Cause fundraiser. The Ottawa Senators will be at TD Garden for a game Tuesday night.