Mixed martial artist Tara LaRosa was forced to use her jiu jitsu skills to restrain an aggressive female protestor at a Veterans Day gathering in Portland, Oregon.

According to The Oregonian, the altercation happened in Northern Portland at an overpass where a group of people celebrating Veterans Day was approached by an angry female protestor, described as an “anti-Trump protester.” The woman, who claims to be a professor at the University of Portland, got into an argument with one of the women in the group. The Oregonian described the group as “right-wing demonstrators.” MMA Weekly noted that some members of the group were wearing Proud Boys insignia.

The professor allegedly attacked the other woman, prompting LaRosa to break up the scuffle and pin the professor down.

The angry professor told LaRosa, “You’re antagonizing the city I live in. Just let me breathe.”

La Rosa replied, “No, we’re not, we’re doing a flag wave. We’re not trying to fight.”

WARNING: Adult language

As LaRosa tried to control the professor, and then released her, but she managed to bite LaRosa through her sweatshirt.

The Oregonian cited Portland Police Sgt. Kevin Allen’s statement,“There are conflicting versions of the events, so we are gathering all of the information we can and referring it to the district attorney.”

The videos filmed by witnesses show the professor berating and then attacking the woman waving the flags.

LaRosa was live on Twitter, showing the patriotic group waving flags for veterans just moments before the altercation.

After leftists defended the angry professor, LaRosa tweeted to explain what happened.

LaRosa tweeted, “The professor started the fight. She tried to engage me in a verbal confrontation, I turned my back ignoring her. She then walked farther down the overpass attempting to engage others the same way. I did not see the fight start. I broke the fight up, keeping her from being hurt.”

LaRosa, the first and only BodogFight Women’s Bantamweight Champion, could have inflicted some serious damage on the angry professor but didn’t. LaRosa earned a bunch of new fans and followers after the way she handled the altercation and for her display of patriotism.