Alessandro Costacurta was left impressed with the overall growth of Italian midfielder of the Rossoneri, Sandro Tonali.
The ex AC Milan legend spoke to Sky Sport Italia as he commented on Milan's performance against Porto:
"Tonali is the demonstration of an environment that somehow truly manages to bring out the best of someone. I believe that Tonali's metamorphosis in recent times has been incredible, for the luck of Milan but also of the Italian national team."
