Ryan O'Neal is a former MMA fighter.
Championship Fighting Alliance ( CFA ) is a mixed martial arts ( MMA ) based promotion company located in Miami Lakes , Florida . Charles Patrick Ryan O'Neal ( born April 20 , 1941 ) , known professionally as Ryan O'Neal , is an American actor and former boxer . O'Neal trained as an amateur boxer before beginning his career in acting in 1960 . is a Japanese mixed martial artist who competes for World Series of Fighting in the Middleweight division .