Simplify the following text for a Grade 8 native English-speaking person.
Original: Kenneth Wayne Shamrock ( born Kenneth Wayne Kilpatrick ; February 11 , 1964 ) is an American mixed martial arts ( MMA ) fighter , a UFC Hall of Famer and also a professional wrestler .
Simplified: Kenneth Wayne Shamrock ( born Kenneth Wayne Kilpatrick on February 11 , 1964 ) is an American mixed martial arts fighter and UFC Hall of Famer . He was also a professional wrestler back in the WWF .