ATLANTA - Mike Knuble, Simon Gagne and Joffrey Lupul each scored two goals and the Philadelphia Flyers earned their 11th straight win over the Atlanta Thrashers, 7-0 on Tuesday night.

The Flyers won their third consecutive game overall after a sluggish 0-3-3 start. Antero Niittymaki stopped 24 shots in his fourth career shutout and improved to 10-0 against the Thrashers. Knuble, who made it 2-0 at 3:13 of the second period, has four goals in three games and seven points in the last five.

Philadelphia took a 3-0 with 14.5 second left in the second period on Gagne's second short-handed goal. Mike Richards set up Gagne by stepping in front of Ron Hainsey to intercept Ilya Kovalchuk's pass near the Thrashers' blue-line.

Knuble's second goal of the game came on the power play and gave the Flyers a 4-0 lead 1:02 into the third. Philadelphia had an extra man because Kovalchuk was penalized for throwing his stick following his giveaway.

Lupul made it 1-0 with an unassisted goal 1:20 into the game. His second goal, and fifth this season, put Philadelphia up 5-0 just 37 seconds after Knuble's third-period goal.

Kari Lehtonen's only bright moment in the Atlanta net came with 7:47 remaining when he stopped Richards' penalty shot. Hainsey gave Richards the attempt by hooking him on a breakaway.

Gagne's seventh goal this season gave the Flyers a 6-0 lead midway through the third. Glen Metropolit's first goal came on the power play with 3:40 left.

Notes: Thrashers rookie D Zach Bogosian, the No. 3 pick in this year's draft, didn't return after Philadelphia's Darroll Powe slammed him into the boards midway through the second. ... In Atlanta's end seconds later, Powe spent a few minutes on his back by the boards following a collision with Thrashers F Eric Boulton. Boulton and Philadelphia's Riley Cote were both assessed unsportsmanlike penalties at 11:55. Powe and Bogosian both skated off the ice under their own power. ... Niittymaki's previous shutout was a 1-0 victory at Florida on Dec. 30, 2007.