Ex-UFC champion Quinton 'Rampage' Jackson is "deeply concerned" for a wrestler after his son appeared to attack and knock him unconscious at a wrestling event in California.
Stuart Smith - also known as Syko Stu - was scheduled to fight at a Knokx Pro Wrestling event which Raja Jackson attended.
Raja Jackson, a 25-year-old professional MMA fighter, was involved in two incidents with Smith that were shown on Kick, a live streaming platform.
Firstly, Jackson was shown being hit on his head outside the venue by the former US army veteran.