Nate Diaz Under Investigation on Battery Allegations for Involvement in Brawl

Police are investigating an alleged assault at a Combate Americas event that included UFC star Nate Diaz, MMA Fighting's Marc Raimondi reported Tuesday. 

John Fosco, the manager of UFC fighter Clay Guida, said Diaz pushed Guida, which caused Guida to fall and split his lip on a metal guardrail. A spokesperson for the Sacramento County (California) Police Department said officers took statements from the scene as part of their report regarding the allegations.

"If it is found the victim was assaulted then a warrant request will be completed and submitted to the District Attorney's office for review," police spokesperson Sgt. Shaun Hampton said. "The filing decision will be up to the DA."

Guida's teammate Tyler Diamond said Diaz slapped him as well:

Raimondi noted Diaz was in attendance at the Combate Americas event to be in the corner of teammate Chris Avila. Avila lost a unanimous decision to Horacio Gutierrez.

Diaz hasn't fought in UFC since his majority decision defeat to Conor McGregor at UFC 202 in August 2016.

ESPN's Brett Okamoto reported earlier this month Diaz and UFC had engaged in discussions about a potential return to the Octagon in August. Diaz, however, shot down one potential opponent when he told MMAjunkie's Simon Samano he's "not fighting that fight" against Georges St-Pierre.