Zambrotta has been an end-of-season target for the Rossoneri, aware that Barca are already sounding out Bayern Munich fullback Philipp Lahm about replacing the Italy international next season.
However, it's emerged that Zambrotta's wife, Valentina, is desperately homesick and wants to return to Italy as soon as possible. Milan are monitoring developments and are confident they're the only genuine option for Zambrotta should Barca be prepared to sell.