Patrice Bergeron had two goals and an assist to lead the Boston Bruins past the Ottawa Senators 5-3 on Saturday night.
David Krejci, Carter Camper and Brad Marchand had the other goals for Boston (37-20-3), which moved five points ahead of the Senators in the Northeast Division with three games in hand.
Tim Thomas stopped 27 shots to extend his unbeaten streak at Scotiabank Place to nine games.
Daniel Alfredsson led the way for Ottawa (32-23-8) with two goals, while Erik Karlsson had the other as the Senators snapped a four-game win streak.
Alex Auld faced 37 shots in place of Craig Anderson, who is out indefinitely after cutting his hand Wednesday.
Karlsson opened the scoring at 1:10 of the first with his 14th goal of the season. But Boston countered with Bergeron's first of the game at 3:36 before Marchand put the Bruins up 2-1 with 3:47 to go with his 22nd goal of the season.
Camper made it 3-1 for Boston with his first goal of the season at 3:57 of the second before Krejci put Boston ahead 4-1 on the power play at 10:24 of the third.
Ottawa made it interesting on Alfredsson's two goals in less than 2 minutes. He scored with 3:45 remaining before registering his 22nd of the season with 2:08 to go. Jason Spezza picked up his 600th career point on Alfredsson's first goal.
But Bergeron rounded out the scoring on an empty-netter with 19 seconds left.
NOTES: The Senators were without Anderson, Cs Peter Regin (shoulder, out for season) and Jesse Winchester (concussion, indefinite). D Brian Lee and C Zenon Konopka were healthy scratches. ... The Bruins were without C Marc Savard (post-concussion syndrome, indefinite), RW Nathan Horton (concussion, indefinite), C Rich Peverley (knee, four-to-six weeks) and LW Shawn Thornton (sick, day-to-day). D Andrew Bodnarchuk was a healthy scratch.