A video is taking off online showing a disgruntled New York Rangers fan knocking a Tampa Bay Lightning fan to the ground with a single punch.
A Rangers fan captured the footage as everyone was leaving the stadium after the game, and the video does not show what led to the argument.
The man in the red shirt who threw the punch was able to continue walking out of the stadium, and it is unclear whether or not the New York Police Department is aware of the incident.