Former UFC star Quinton “Rampage” Jackson has broken his silence after viral footage showing his son, MMA fighter Raja Jackson, brutally attacking pro wrestler Stuart Smith, also known as “Syko Stu” in a stunning off-script moment.

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,

Quinton Jackson and the promotion that held the show said the incident involving Raja Jackson and wrestler Stuart “Syko Stu” Smith appeared to be a case of a planned spot gone wrong.