Simplify the following text for a Grade 6 native English-speaking person.
Original: Ronaldo Rodrigues de Jesus ( born June 19 , 1965 in SÃ # o Paulo , Brazil ) is a former Brazilian national team defensive football player , better known on the football pitch as Ronaldo and RonaldÃ # o ( big Ronaldo ) .
Simplified: Ronaldo Rodrigues de Jesus ( born 19 June 1965 ) is a former Brazilian football player . He has played for Brazil national team .