It seems Kleber Koike Erbst and the “Pitbull” brothers got into an altercation at Bellator x Rizin 2 in Japan.

According to Patricio Freire, Erbst argued with his brother, Patricky Freire, after Patricky defeated Koike’s teammate, Roberto de Souza, by TKO at Saturday’s Bellator x Rizin 2 at Saitama Super Arena near Tokyo.

Patricio alleged Koike also celebrated Patricio’s shocking KO loss to Chihiro Suzuki before the Patricky vs. de Souza fight, then after the event, Koike invaded their locker room to kick Patricky from behind and run off.

Kleber Koike is a dirt loser and a coward. He celebrated my loss and argued with my brother after the fight. Later he invaded our locker room, kicked @PatrickyPitbull from behind and run away. @rizin_PR a fighter like this should never enter your ring again. @BellatorMMA

— Patricio Pitbull (@PatricioPitbull) July 30, 2023

流石にやばい pic.twitter.com/0QyehiTkH8

— change (@dardardar453) July 30, 2023

Patricio and Koike have history. The two fought at the first Bellator x Rizin event back this past December in a non-title bout. Patricio defeated his fellow Brazilian by unanimous decision. That’s his most recent victory. He now has back-to-back defeats for the first time in his MMA career.

Patricio entered Bellator x Rizin 2 off a decision loss to Sergio Pettis in an attempt to capture the bantamweight title and become the first three-division Bellator champion. The 36-year-old made no excuses for his first-round KO defeat to Suzuki and made it clear he’ll bounce back.

You can watch Patricio’s KO loss in the video below:

Thank you Japan for the great reception. Unfortunately it wasn’t my night. Congratulations to @Chihiro__0514 but this story still has another chapter. See you at @BellatorMMA. @rizin_PR

— Patricio Pitbull (@PatricioPitbull) July 30, 2023

THE BIGGEST UPSET IN RIZIN HISTORY!!!

Chihiro Suzuki STOPS Patricio Pitbull in round 1!#SuperRIZIN2 |PPV link in bio pic.twitter.com/1adzXnRwCW

— RIZIN FF English (@rizin_English) July 30, 2023

It may not have been his night but @PatricioPitbull is resolved to come back stronger! #BellatorXRizin #SuperRizin2 pic.twitter.com/rejuh8aLtJ

— Bellator MMA (@BellatorMMA) July 30, 2023

More Bellator!

Bellator x Rizin 2 results: Patricky Freire uses vicious leg kick to stop Roberto de Souza in grand prix quarterfinal

Photos: Best of Bellator x Rizin 2 from Japan

Patricky Freire def. Roberto de Souza at Bellator x Rizin 2: Best photos