It’s hard to unite NFL fans who support the league’s 32 different teams, but this one man has done it.

Everyone is rooting against John Callis.

The Baltimore police department has issued a warrant for the arrest of the Ravens fan who went viral after a video showing him allegedly assaulting two Washington Commanders fans was posted on social media on Sunday.

Baltimore police told the New York Post that Callis, a 24-year-old Baltimore native, is “currently wanted for first-degree aggravated assault and three counts of second-degree assault.”

The Ravens had beaten their Beltway rival 30-24 earlier in the day and Callis appeared to be pretty fired up about it in the video.

Callis was seen in a video approaching two rival fans and then kicking, punching and slamming them in a violent outburst that appeared to be unprovoked.

WARNING: Strong language and violence

“I don’t lose! I don’t f***ing lose!” Callis said in the video after the assault.

In their warrant announcement, police said that the two alleged victims were both 23-year-old men, but did not mention any injuries suffered during the incident.

Baltimore police urged anybody with more information about Sunday’s incident to reach out to Metro Crime Stoppers of Maryland.

Earlier this week, Fox 5 DC reported that Callis previously had been charged with second-degree assault stemming from an altercation with a police officer in Florida in 2021. After pleading not guilty, he was placed on probation.

After the video went viral, several social media sleuths got down to business and quickly identified Callis.

In replies to the video posted by Hater Report, which has been viewed more than 49 million times as of Friday morning, an X user posted information about the man alleged to be the assailant.

After Callis was identified as an employee at Maury Donnelly and Parr, the insurance firm was quick to announce on X that he was “no longer employed” by company.

“MDP has a zero-tolerance policy for violence and aggressive behavior. This individual is no longer employed with our firm,” the company wrote in its post. 

The Ravens will take on the Arizona Cardinals on Monday night aiming to boost their record to 5-2.