The Carolina Panthers are pursuing charges against a fan caught on video punching a fellow spectator during Thursday's loss to the Philadelphia Eagles.
A video posted by an Instagram user showed a man wearing a Cam Newton jersey punching another fan who was sitting behind him repeatedly in the face.
The caption in the original post, which included objectionable language, claimed the two men had been arguing throughout the game because the man in the Newton jersey and the woman with him refused to sit down.
According to the user who posted the video, the victim was also wearing Panthers gear.
"We have reviewed video tape of the incident and have identified the perpetrator," Panthers' executive director of risk management Lance Emory said in a release Friday.
"We are working with the Charlotte Mecklenburg Police Department to pursue charges to the fullest extent of the law.
"The Carolina Panthers are committed to a fan-friendly and family-friendly stadium experience. The behaviour exhibited by the perpetrator is unacceptable and will not be condoned at Bank of America Stadium."