FC Barcelona and AC Milan have reached an official agreement so the transfer of Gianluca Zambrotta to the Italian club can be completed.

The 31-year-old defender will put pen-to-paper on a four-year contract with the Serie A outfit that will see him play at the San Siro until 2012. The transfer fee is 9m plus 2m more depending upon Milans performance in the Champions League over the next four seasons.

Zambrotta has played for Barcelona for the past two seasons after joining the club from Juventus in 2006 and helped the Blaugrana to win the Spanish Super Cup in his first season.