Simplify the following text for a Grade 8 native English-speaking person.
Original: Jens Johnnie `` Little Evil '' Pulver ( born December 6 , 1974 in Sunnyside , Washington ) is an American mixed martial artist ( MMA ) .
Simplified: Jens Johnnie Pulver ( born December 6 , 1974 ) is an American mixed martial artist ( MMA ) .