Milan vice-president Adriano Galliani insisted yesterday that a deal would only be completed if the price is right, but Roberto De Assis is confident that his brother will make the switch to the San Siro.
"Everything's ready for the transfer. He is there 80-90 per cent and we are working towards that.
"He is working hard to get back to his best and the important thing is that now he is fine and that he is working for his future."
Milan might be leading the pack but there is no shortage of other possible destinations for Ronaldinho.
"There's a contract with Barca, there's other possibilities," he added. "We'll see in the next fortnight.
"LA Galaxy? No, no, absolutely not. Why Galaxy? I absolutely rule out Galaxy. It's not possible because he is only 28 and he wants to play at least five or six years more at the top level in world football."