AC Milan vice-president Adriano Galliani is confident Ronaldinho will rediscover his best form at the San Siro.
Galliani said: "I believe that he will again become a champion player.
"If you have to be a good player, then it is the personality which separates, in my view, the good players from the champions. And I believe that Ronaldinho has a lot of personality."
On criticism of their summer market work, Galliani insists: "We have two players for each position. I don't understand people who claim our squad is unbalanced. I don't know where the problem is."