MONTREAL – Tom Kostopoulos scored 48 seconds into overtime to give the Montreal Canadiens a 4-3 victory over the Philadelphia Flyers on Thursday night in the opening game of their second-round series.

Kostopoulos put his own rebound past Martin Biron shortly after a faceoff in Philadelphia’s zone for his third goal of the playoffs.

Alex Kovalev drew Montreal even with 28.6 seconds remaining in regulation, scoring a power-play goal off a faceoff with goalie Carey Price pulled for an extra attacker.

Flyers center Jeff Carter’s stick broke as he lost the faceoff to Saku Koivu, and Kovalev beat Biron with a shot into the top right corner. The Flyers continue to have problems protecting leads.

Philadelphia also blew two-goal leads in Games 1 and 6 of its first-round series against Washington, and lost both games.

Joffrey Lupul scored a power-play goal 19 seconds into the third to give the Flyers a 3-2 lead.

Lupul, who scored Philadelphia’s series-winning goal in overtime Tuesday night in Washington, got his second of the playoffs – after a brief video review – when the puck came out of Price’s glove and hit Lupul’s hand before going into the net off the Flyers forward’s skate.

Canadiens coach Guy Carbonneau kept Price on the bench for a sixth attacker as Montreal began a power play in the Flyers’ zone with 1:09 remaining after Philadelphia’s Mike Richards was sent off for kneeing Kovalev.

Red Wings 4, Avalanche 3

DETROIT – Johan Franzen scored two goals and had an assist to help Detroit build a three-goal cushion, and the Red Wings held on to beat the Colorado Avalanche 4-3 Thursday night in Game 1 of their second-round series.

Franzen’s second goal early in the second put Detroit ahead 4-1, but Colorado pulled within a goal by the end of the period.

Detroit’s Chris Osgood made 18 saves.

The Avs pulled Jose Theodore after he gave up four goals on 16 shots, then said they sent him to the team hotel because he was sick. Peter Budaj gave the Avs a chance to come back by stopping all 20 shots he faced.

Game 2 is Saturday afternoon in Detroit.

Joe Louis Arena was buzzing when the puck dropped and a rivalry was renewed, then the Avs quieted the storied arena with the game’s first goal.

Paul Stastny scored midway through the first period.

The lead didn’t last long.

Henrik Zetterberg lit the lamp a minute later, then Franzen factored in the next three goals by assisting on Dan Cleary’s goal and scoring twice for the first time in a playoff game.

John-Michael Liles scored at 5:17 of the second for Colorado, and Milan Hejduk scored late in the period to make it 4-3.