Inter's owners Suning are being linked with a move for the Argentine.
And Moratti told AS: "I imagine that Inter have already tried. I have seen that Suning ad with the Argentine's silhouette in the Duomo and this makes me think that an initiative has already been taken.
"And if not, I think they will soon.
"It is not a simple operation economically, it is clear. But the biggest obstacle is Messi's will. We have to know if he really wants to leave Barça. I do not have this very clearly."