Simplify the following text for a Grade 8 native English-speaking person.
Original: Marcos Roberto Silveira Reis ( born on August 4 , 1973 , in Oriente , SÃ # o Paulo ) , known simply as Marcos , is a World Cup winning Brazilian football goalkeeper who won the 2002 FIFA World Cup .
Simplified: Marcos Roberto Silveira Reis ( born 4 August , 1973 ) is a Brazilian football player .