Milan Vice-President Adriano Galliani admits he wouldn't know how to react if Leonardo were to replace Rafa Benitez at Inter.
Leonardo spent over a decade at Milan first as a player, then as a director and finally as a Coach.
He left by mutual consent in the summer after one season in charge, citing differences of opinion with Silvio Berlusconi.
"I don't know what my reaction would be," Galliani told Sky Italia. "He certainly has a very important history with Milan.