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"I'm happy that we won, and we won here in front of our fans and we tied up the series," Radulov said. "But nothing has happened yet. It's 1-1 and now we go into their building and it's going to be hard, but we've got to play like we played in the third [period], the last 10 minutes, and overtime. Play smart hockey and play more in their zone than in ours."
Tomas Plekanec scored for Montreal to tie it 3-3 with 18 seconds remaining in the third period and goalie Carey Price pulled for an extra attacker.
"We knew our backs were against the wall," Pacioretty said. "We knew what the buzz was like after losing one game. You don't want to go down 2-0."
Lundqvist set his Stanley Cup Playoff high with 54 saves. His previous high was 49 in a 4-3 loss to the Washington Capitals on April 20, 2011.
"I think they did a good job of keeping pucks in tonight and that's where we got hurt," Lundqvist said. "We had a couple of times to get the puck out and they worked hard to keep them in and that's where they created their second and third chances. But obviously that's a tough one to give up that late, but it happens; regroup here and get ready for home ice."
Jeff Petry and Paul Byron scored in the first period for the Canadiens, who led 1-0 and 2-1. Price made 35 saves.