Simplify the following text for a Grade 6 native English-speaking person.
Original: AntÃ nio Carlos Zago , widely known as `` AntÃ nio Carlos '' or `` A.C. Zago '' , ( born March 14 , 1969 in Presidente Prudente ) is a former Brazilian footballer .
Simplified: AntÃ nio Carlos Zago ( born 18 May 1969 ) is a former Brazilian football player .