A professional mixed-martial artist with a fifth-degree black belt in Brazilian jiu-jitsu who was living in Danville has been indicted by an Orange County grand jury on a felony assault charge for an unprovoked attack on a five-time jiu-jitsu world champion that resulted in the victim losing teeth, prosecutors announced on Friday.

Ralph Gracie, 39, fled to his birth country of Brazil after a warrant was issued for his arrest, and he has since failed to appear at several scheduled court hearings, according to the Orange County District Attorney's Office.

Gracie, a Danville resident before leaving the United States, owns several Brazilian jiu-jitsu schools in the Bay Area, including one in Dublin called the Ralph Gracie Dublin Jiu-Jitsu Academy.

Prosecutors allege Gracie committed an unprovoked, blindside assault on world champion Flavio Almeida while on the sidelines of the 2018 International Brazilian Jiu-Jitsu Federation World Championships in Anaheim on Dec. 15, 2018.

"The Orange County District Attorney's Office will continue to seek justice for victims regardless of the geographical obstacles in our way," Orange County District Attorney Todd Spitzer said in a statement Friday announcing the grand jury's determination.