Ronaldinho scores in Brazil championship opener

Flamengo’s city rivals and holders of the title Fluminense were stunned 2-0 at home by Sao Paolo, who had Dagoberto and prodigy Lucas to thank for their goals.

Elsewhere, Corinthians won 2-1 at Gremio, and Copa Libertadores semi-finalists Santos drew 1-1 at home to the holders of that tournament, Internacional.