The Biancocelesti has won their first two matches of the season, against Cagliari and Sampdoria, and are top of the table.
“On Sunday night we will be facing a Rossoneri squad with pride and quality, who have not hidden their objective of winning the Scudetto,” said Rossi.
“We must live this season one day at a time. This is going to be a very useful test to understand how our development is progressing and what we are really made of.”
He added: “We must go to San Siro with humility and courage. Are we aiming for a Champions League place? We are living this season one day at a time.”