Robinho has been playing on-loan with Santos this season.
"We have to pay him what he's owed, and we're working on it. The deal with Milan is easier, I don't foresee any major difficulties.
"The player's will is crucial in this deal.
"An exchange? I can't name names, there is a lot of work to do with Milan. I'm going to prove that we're a club which is open to doing business with the European clubs."