Bruins 5, Senators 2 .

OTTAWA - Tim Thomas made 47 saves, Daniel Paille scored twice and the Boston Bruins extended their winning streak to three games with a 5-2 victory over the Ottawa Senators on Wednesday night.

Rich Peverley and Patrice Bergeron each had a goal and an assist and Chris Kelly also scored for the reigning Stanley Cup champions, who won for the second night in a row to move atop the Eastern Conference standings. Andrew Ference had two assists.

Boston, which went 3-7 in October, has 41 points and one more win than Philadelphia. The Bruins have gone 17-2-1 since Nov. 1, when they launched a 10-game winning streak with a 5-3 win over Ottawa.

"To be honest, I didn't know that," said Kelly, a former Senator who restored Boston's one-goal lead in the second. "I think that's maybe a good thing, that we're just playing every game. There are still points of our game that we can get better at and that's not necessarily a bad thing."

Daniel Alfredsson and Jason Spezza each had a goal and an assist for the Senators, on a 2-4-2 skid despite an overtime win at Buffalo a night earlier.

"They're a team that we know clogs it up in the neutral zone very well," Alfredsson said. "Unfortunately, we couldn't get as many goals as we would have liked on the chances we created in the first two periods."

Craig Anderson stopped 24 shots for Ottawa.

Tuukka Rask recorded his first shutout of the season Tuesday night as the Bruins beat Los Angeles 3-0 in their first game without defenceman Zdeno Chara.

The Boston captain missed his second straight game after injuring his left knee Saturday in Columbus.

The Senators were without Milan Michalek, who sustained a concussion Tuesday night. Michalek was injured in a collision with teammate Erik Karlsson after scoring his NHL-leading 19th goal earlier in the game.

Bruins defenceman Adam McQuaid was given a major penalty for kneeing and a game misconduct after he stuck out his leg to trip up Nick Foligno 17:45 into the second.

"I played junior with Nick and we're good friends," McQuaid said. "Obviously, when we play against each other, we compete against one another, but I certainly would never intentionally try and do anything to hurt him or anyone else. I was just kind of pinching in and trying to keep the puck in and he made a kind of a quick move around me and I was just trying to do what I could to get in his way."

Foligno went to the dressing room but returned before the end of the second to take a shift during the ensuing power play.

"I think Adam was just trying to stop me from getting around him and I don't think he realized his knee was out that far, and he clipped me," Foligno said. "I think it looks worse than it was. It was bad but it got me on the leg, so I'm happy at least it wasn't on my knee. My quad's got a charley horse, but that's about it."

Thomas stopped each of the 13 shots he faced in the opening period as Boston took a 1-0 lead 12:10 in on Peverley's second goal in two nights.

Peverley assisted on Kelly's goal 13:47 into the second to put the Bruins up 2-1. Kelly got behind defencemen Matt Carkner and rookie David Rundblad and was all alone to put a rebound of Johnny Boychuk's shot between Anderson's pads.

Bergeron made it 3-1 with an unassisted effort 4:54 into the third. The Bruins centre took advantage of Alfredsson's uncharacteristic turnover at the Ottawa blue line and drove in to beat Anderson with a deke for his sixth goal.

Paille beat Anderson on a breakaway at 5:50 to increase the lead to 4-1. He added his second of the game with 1:04 remaining after Spezza scored at 15:55.

Spezza assisted on Alfredsson's goal 4:23 into the second that tied it at 1-1.

NOTES: Bruins LW Milan Lucic fought with Carkner in the first ... Boston is 6-5-3 without Chara in the lineup since 2006, when he left the Senators to sign with the Bruins as a free agent ... Alfredsson's goal was the 397th of his career ... Spezza has a goal and six assists during a four-game points streak ... The Senators are home again on Friday, when the Pittsburgh Penguins visit Scotiabank Place (7:30 p.m., Sportsnet East, Team 1200).