Simplify the following text for a Grade 8 native English-speaking person.
Original: Leonardo Nascimento de AraÃ jo , known simply as Leonardo ( born 5 September 1969 in NiterÃ i , Brazil ) , is a football manager and a former midfielder , serving as head coach of Internazionale .
Simplified: Leonardo AraÃ jo ( born 5 September 1969 ) is a former Brazilian football player .