UFC legend Mat Serra reveals he constantly has to kick problematic guys out out of his BJJ gym

Former UFC welterweight champion and Hall of Famer Matt Serra has long been known for his toughness inside the Octagon but at his academies on Long Island that toughness takes on a different form—protecting the culture of his gym.

Speaking on a recent episode of The Joe Rogan Experience MMA Show Serra didn’t sugarcoat the realities of running a martial arts academy.

“I pluck guys out on a [ ] every month. Somebody comes in I don’t like keep you a couple hundred dollars. Get the [ ] out of here.”

It’s a stark reminder that for Serra the health of the team is more important than any single student’s tuition or skill level.

“Biggest thing out of an academy is the atmosphere as you know. It all comes down from the attitude of the people that are running the place. Always. Always.”

This uncompromising approach echoes what many respected Brazilian Jiu-Jitsu instructors have been saying for years: toxic behavior erodes the training environment faster than any technical deficiency ever could.

BJJ black belt Jeff Messina recently voiced a similar stance on the Combat Creative podcast making it clear that no amount of talent can excuse a bad attitude.

“I’ve kicked people out that are very talented in Jiu-Jitsu… I don’t want to have that cancer in the gym. People will start leaving because this person is making bad choices or treating people poorly… as soon as something like that happens I usually give someone a warning or depending on what it is that they’ve done I’ll just boot them right away. I don’t care who they are.”

Messina stressed that the instructor’s responsibility is to create a safe welcoming and respectful space—especially for women children and newer students who might otherwise feel alienated or intimidated.

Both Serra and Messina’s perspectives push back against a trend in which some academies have been accused of protecting high-performing competitors at the expense of student safety and morale.

For Serra the logic is simple: keep the wrong people out so the right people can thrive. And for anyone training under him that means the moment you start disrupting the culture you’re gone—championship medals or not.