DoniÃ ber Alexander Marangon ( born 22 October 1979 ) is a Brazilian football player . He plays for Roma . DoniÃ ber Alexander Marangon ( born 22 October 1979 ) , more frequently known as simply Doni , is a Brazilian football goalkeeper who currently plays for AS Roma of the Italian Serie A. He was born in JundiaÃ , SÃ # o Paulo .