A scoreless tie evaporated with a flurry of goals during the second period of the 2012 Winter Classic.
The Philadelphia Flyers scored two goals in less than two minutes, and the New York Rangers answered 30 seconds later.
Flyers forward Brayden Schenn knocked in a rebound to break a scoreless tie at 12:26 of the period.
Rangers goalie Henrik Lundqvist had been impenetrable before Schenn's tally, but the Flyers didn't take long to find another hole in Lundwvist's armor. At 14:21, Claude Giroux buried a backhanded shot into the top shelf.
The Rangers didn't quite hang their heads after Giroux's score, seizing back the momentum quickly with a Mike Rupp goal.
Lundqvist has 24 saves after two periods, while his counterpart Sergei Bobrovsky has 16.
See SB Nation New York's StoryStream for complete Winter Classic coverage. You can visit Blueshirt Banter for the Rangers perspective. For the Flyers perspective, seeBroadStreetHockey or SBNation Philly.