Milan are reportedly ready to sell Suso after baulking at his demands of €6m a season.
However, Calciomercato.com writes the Rossoneri are prepared to sell him for €25-30m after learning the former Liverpool attacker wanted his salary doubled.
The 25-year-old scored eight goals and provided nine assists in 41 appearances last season but went three months without a contribution.
Suso still has three years left on his contract and has a €38m release clause, but the website writes the chances of a club offering such a sum are low.
Atletico Madrid appear to be his likeliest destination if he leaves Milan, while Tottenham Hotspur were previously linked.
The Diavolo, for their part, need to raise funds before June 30 to at least show UEFA that they are trying to balance their books.