Simplify the following text for a Grade 7 native English-speaking person.
Original: Dario JosÃ dos Santos ( born 4 March 1943 in Rio de Janeiro ) , nicknamed Dario , or DadÃ Maravilha ( Wonder DadÃ ) is a former Brazilian footballer .
Simplified: DadÃ Maravilha ( born 4 March , 1943 ) is a former Brazilian football player .