This is a list of Portuguese winter football transfers for the 2010–11 season. The winter transfer window opened on 1 January 2011 and closed on 31 January 2011. Players could be bought before the transfer window opened, but were not permitted to join their new clubs until 1 January. Additionally, players without a club could join at any time and clubs were able to sign a goalkeeper on an emergency loan if they had no registered goalkeeper available. Only moves involving Primeira Liga clubs are listed; included are clubs that completed transfers after the closing of the summer 2010 transfer window due to other domestic leagues having a later closure date to their transfer window.

Transfers

Date Name Moving from Moving to Fee Patric Benfica Atlético Mineiro €1,000,000 José Luis Fernández Racing Benfica Undisclosed André Castro Porto Sporting de Gijón Loan Jardel Olhanense Benfica Undisclosed Kanu Beira-Mar Standard Liège €350,000 Javier Balboa Benfica Albacete Loan Lionel Carole Nantes Benfica €750,000 Tony Cluj Vitória de Guimarães Free Stélvio Braga Sporting da Covilhã Loan Nuno Valente Braga Sporting da Covilhã Loan Ulick Lupede Naval Sporting da Covilhã Free Jason Davidson Paços de Ferreira Sporting da Covilhã Loan Ricardo Rocha Chaves Beira-Mar Free Jan Oblak Benfica Olhanense Loan William Tiero CSKA Sofia Olhanense Free Liédson Sporting CP Corinthians Undisclosed David Luiz Benfica Chelsea €25,000,000

Some players may have been bought after the end of the 2010 summer transfer window in Portugal but before the end of that country's transfer window closed.

References