The 27-second clip shows Carolina wideout Terrace Marshall catching a touchdown over New York cornerback DJ Reed, who was flagged for pass interference on the play

As players were being separated, Reed retrieved the ball and hurled it at Marshall as he was being held back by Panthers staff.

The tension didn’t dissipate, as Jets defensive end Michael Clemons later got into a shoving match with several Panthers offensive linemen later in the practice session.

Joint practices are meant to provide NFL teams with an opportunity to gain experience against unfamiliar opponents after weeks of scrimmaging against themselves. However, they often come with the risk of fights, which the NFL is trying to address.

A brawl between the Detroit Lions and New York Giants at a previous joint scrimmage earlier this month resulted in $200,000 fines for both teams.

One way to address the concern is to limit joint practices to a single day, as Packers running back Josh Jacobs and Rams quarterback Matthew Stafford suggested.

“Every time I’ve ever had a joint practice, the first day will be a little rough and then the second one ends in a fight,” Jacobs told The Washington Post.

“I think there’s probably less fights [when there’s one day], which is good,” Stafford said. “You know, the second day is when everybody kind of gets a little charged up and gets going.”