Pato rejected a move to PSG during the winter market.
Galliani said: "Pato? There have been many false rumours circulating, but he has decided to stay at Milan, there's no secret about that and that's the only truth. Pato called the club and said so, and after many years of experience, I have learned to respect players' decisions.
"Similar situations have occurred for Boban, Serginho and Abbiati. Now the reality is we have a lot of great attacking talent."