MONTREAL (AP) -Michael Cammalleri scored his second goal of the game midway through the second period and Jaroslav Spacek netted the go-ahead tally 2:30 later for the Montreal Canadiens, who forced a Game 7 in the Eastern Conference semifinals with a 4-3 victory over the Pittsburgh Penguins on Monday night.
Maxim Lapierre also scored 11:03 into the third to give Montreal a 4-2 lead.
Bill Guerin deflected Sergei Gonchar's slap shot from the right point past Jaroslav Halak with 1:24 remaining to draw Pittsburgh within one. But the Canadiens held on to set up Game 7 in Pittsburgh on Wednesday.
Halak stopped 34 shots for the eighth-seeded Canadiens.
Pittsburgh captain Sidney Crosby scored his first goal in seven games in the first period. Crosby earned an assist for his 19th point in 12 games when Kris Letang scored for a second game in a row early in the second.
That made it 2-1 for the Penguins, who had closed out five straight playoff series with a road win.
BOSTON (AP) - Michael Leighton came off the bench after Brian Boucher was injured and made 14 saves to complete the combined shutout, leading Philadelphia over Boston and helping the Flyers avoid elimination in Game 5 of the best-of-seven Eastern Conference semifinals.
Boucher left after injuring his knee at the bottom of a pileup in the crease at 4:35 of the second period. Leighton, who had been the starter before he was injured on March 16, made his first career playoff appearance and finished off the first combined shutout in the Flyers' postseason history.
Simon Gagne, who scored in overtime to win Game 4, netted two goals, Ville Leino had a goal and an assist, and Scott Hartnell also scored to help the Flyers force the series back to Philadelphia for a sixth game on Wednesday night. If they win, it's back to Boston for a decisive Game 7.
The 1942 Toronto Maple Leafs and the 1975 New York Islanders are the only NHL teams to come back from a 3-0 deficit to win a best-of-seven playoff series.
Tuukka Rask stopped 27 shots for Boston, which missed a second chance to clinch the series and advance to the conference finals for the first time since 1992.