Former UFC champion Quinton 'Rampage' Jackson is "deeply concerned" after his son appeared to attack wrestler Stuart Smith and knock him unconscious at an event.

The son of former UFC champion Quinton “Rampage” Jackson appeared to brutally attack a pro wrestler during an indie show in Los Angeles Saturday night, video of the altercation showed, in what the elder Jackson called a case of “bad judgement,

Former UFC champion Quinton “Rampage” Jackson has apologized and said that he is “very upset” after his son allegedly committed what organizers called “a selfish, irresponsible act of violence” against a wrestler during an event Saturday night in Sun Valley,