Ronaldo de Assís Moreira, commonly known as Ronaldinho (born March 21, 1980 in Porto Alegre), is a football player from Brazil. He became a naturalized Spanish citizen in January 2007. Ronaldinho (pronounced [χonawˈdʒĩɲu]), meaning "little Ronaldo", is better known in Brazil by the nickname Ronaldinho Gaúcho, in order to distinguish him from Ronaldo (already called…