A video posted to YouTube late Monday night shows the uglier side of some NHL Winter Classic fans.
The video appears to be of men in Flyers jerseys and Rangers jerseys fighting outside famous South Philly cheesesteak shop Geno’s Steaks and was posted on the same day the two storied franchises faced off in the Winter Classic though it's unclear when the video was taken.
WARNING: The video titled “Winter Classic 2012, Rangers fan knocked out” contains graphic violence and language.
The video begins with what appears to be a Flyers fan wearing a No. 28 Claude Giroux Flyers jersey taking off his coat as he goads on a fan in a No. 24 Ryan Callahan Rangers jersey.
Suddenly the Flyers fan swings at the Rangers fan and a melee ensues right in the middle of the street.
The Rangers fan punches back but is quickly taken to the ground where a man in a No. 68 Jaromir Jagr Flyers jersey jumps in and begins pounding the Rangers fan. Suddenly the guy in the Giroux jersey and a man in a black coat begin to punch another Rangers fan, also taking him to the ground.
The whole time another guy in a Flyers jersey tries to hold back his fellow Philly fans.
As others jump in to try and stop the fight, both Rangers fans get to their feet. The man in the Giroux jersey is being held back but appears to break away and land a loud blindside punch to the side of the head of the Callahan fan, dropping him to the ground.
The 47-second video ends with the Rangers fan on the ground -- possibly knocked out -- as the Flyers fan stands over top of him to grab his coat and go.
Philadelphia Police were unaware of the incident but opened up a case after being made aware of the video by NBC Philadelphia. If anyone recognizes the people involved in the fight they should call South Detectives at 215-686-3013.