Ricardo Miguel Moreira da Costa (Portuguese pronunciation: [ʁiˈkaɾdu ˈkɔʃtɐ]; born 16 May 1981) is a Portuguese professional footballer who plays for Greek club PAOK FC mainly as a central defender and occasionally as a full back.After making his senior debut with Porto (where he was only a reserve) he went on to play in Germany, France and Spain, mainly spending several seasons with Valencia in the latter country.A Portuguese international since 2005, Costa represented the nation in three World Cups and Euro 2012.