Kostopoulos gives Canadiens a win

Tom Kostopoulos scored 48 seconds into overtime to give the Montreal Canadiens a 4-3 victory over the Philadelphia Flyers on Thursday night at Montreal in Game 1 of their Eastern Conference 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.

Joffrey Lupul scored a power-play goal 19 seconds into the third period 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.

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

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

The Avalanche gave the NHL’s top-seeded team all it could handle despite an unexpected scratch. Star center Peter Forsberg was out of the lineup because of a groin injury.