Carlos Eduardo de Castro Lourenço, commonly known as Rincón (born May 31, 1987 in São Paulo), is a Brazilian football player who currently plays for Italian side A.C. Ancona.
Rincon from an early age was tipped to be the natural successor to Brazilian and Milan player Cafu. The young right back became known for his attacking flair and after joining Manchester United was expected to progress at quick rate. However, Rincon failed to got a work permit and was subsequently loaned out to São Paulo, the club he began his career with.
Rincón remain on loan on rest of 2006/07 season. He played two matches for Empoli in Coppa Italia. In 2007-08 season , he played two UEFA Cup matches.