AC Milan coach Massimiliano Allegri admits he faces a massive challenge after so many squad changes this summer.

Allegri insists that he will be facing new challenges in his third season at San Siro.

"This will be a different campaign to my first two here," the tactician stated as the Diavolo began their pre-season preparations.

"There will no longer be a host of players in the changing room who have written the history of this club.

"There will be a handful of new faces, while two or three of the older guard have remained and that includes Massimo Ambrosini - he will be an important element."