Professional MMA fighter Tara LaRosa delivered a knockout punch to attorney Michael Avenatti on Tuesday, responding to his attempt to challenge Donald Trump Jr. to a few rounds inside the octagon.

Yo @MichaelAvenatti

Don’t bring your bitch ass posturing bullshit around MMA. Go back to the underworld ya f’n scrub. https://t.co/OmpPzrtmGx — Tara LaRosa (@TaraLaRosa) October 9, 2018

“Don’t bring your bitch ass posturing bullshit around MMA,” LaRosa tweeted. “Go back to the underworld ya f’n scrub”

Avenatti first broached the subject at the Vanity Fair Summit, suggesting a three-round mixed martial arts fight with all proceeds going to charity.

This would be for two great causes. I’m in. https://t.co/zo46yhsXCi — Michael Avenatti (@MichaelAvenatti) October 9, 2018

Trump Jr., who has been on the campaign trail, has not yet responded to Avenatti — and the attorney’s challenge is not the only one to go unanswered. About a year ago, LaRosa delivered an open challenge, requesting to fight any female fighter who identifies as Antifa. No one has yet volunteered. (RELATED: If You’re Squeamish, You Probably Shouldn’t Watch This MMA Fighter Break His Leg In The Middle Of A Fight)

Follow Virginia on Twitter.