For the better part of two periods, the New York Rangers dominated Game 1 against the Montreal Canadiens. A big reason for that was their shot blocking and goaltending. Goalie Henrik Lundqvist had posted a shutout midway through the game and the Rangers blocked nine shots in the second frame.
So you can understand why they were upset when it was all undone by a missed penalty call.
Montreal finally broke through when forward Rene Bourque slipped a strange goal past Lundqvist with about five minutes left in the second period. The puck took an odd bounce past King Henrik, but that's not what made New York so upset.
Just moments before Bourque's goal, the Canadiens had one too many men on the ice. If the referees had caught it, play would've stopped and the Rangers would still hold a two-goal lead.
Because it didn't, the Canadiens have to feel fortunate for the shift in momentum the whole sequence caused. After all, a one-goal deficit heading into the third period of an Eastern Conference Finals game is a whole lot better than two.