Simplify the following text for a Grade 5 native English-speaking person.
Original: Orenthal James `` O. J. '' Simpson ( born July 9 , 1947 ) , nicknamed `` The Juice '' , is a retired American football player , football broadcaster , actor , and convicted felon .
Simplified: Orenthal James `` O. J. '' Simpson ( born July 9 , 1947 ) , also known by his nickname , The Juice , is a retired American football player .