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Less than a second remained when the puck came off the stick of Sidney Crosby. The fractions ticked down as the puck slipped past Tuukka Rask. The clock showed 0.0.
The referees convened over the video screen to determine whether Cam Neely’s frustration was warranted. It was, with 0.3 seconds left as the puck crossed the goal line, and the Bruins and Penguins were headed for more hockey at the TD Garden.
But not much more.
Just 34 seconds into overtime, Torey Krug took a feed from Brad Marchand behind the left circle, skated in toward the net, releasing the shot at the faceoff dot. He beat Marc-Andre Fleury, giving the Bruins their second consecutive overtime win, this one a 4-3 victory over the Penguins.