Pato has returned from a long injury lay-off to make seven appearances for Milan so far this season, scoring two UEFA Champions League goals.
Several clubs, including Chelsea, have been linked with the 23-year-old Brazilian, who came off the bench to score the Rossoneri's third goal in their 3-1 victory at Anderlecht in midweek.
Pato has cast doubt over his future at the San Siro, telling Mediaset Premium: "I had said to the coach (Massimiliano Allegri) I would come off the bench and close the game.
"Milan are doing well and Stephan El Shaarawy is doing well, but I want to play. We'll see what to do with my agent."
Pato's agent, Gilmar Veloz, is planning talks with his client and AC Milan next week and was tight-lipped over a potential move.
He told tuttomercatoweb.com: "If he said those things he has his reasons.
"We want to understand and evaluate the situation with AC Milan. For now it would be redundant to say something more.
"On Tuesday I'll arrive in Italy to speak with Alexandre and AC Milan and then evaluate what to do.
"Could he leave Milan? I don't know, we'll talk after Tuesday."