The Nerazzurri opened their International Champions Cup campaign in Singapore with a 1-0 reverse.
“Manchester United have a lot of quality, we tried to play with organisation," the centre-back told Sportitalia.
“We can learn a lot from this game and there is a great deal to improve.
“It's a different system first of all, we need to get used to the style of playing. He's very clear on what he wants to do and we are looking every day to get better."