Adriano Galliani has confirmed "an offer has arrived" for Alexandre Pato but insists AC Milan will do all they can to keep Robinho at the club.
The Rossoneri vice-president admitted the club are facing an uphill battle to convince the Brazilian duo to remain at San Siro with Corinthians reportedly offering €15 million for Pato and Robinho actively seeking to return to his homeland.
Galliani told Milan Channel: "An offer has arrived for Pato. Basically, in defence and midfield we will not be signing anyone and if Pato and Robinho remain - or if only one leaves - then we won’t bring in any replacements.
"We believe the right number of strikers to have is five, as if two new ones arrive, then there won’t be space for M’Baye Niang. We’re doing everything to keep hold of Robinho, although I am not certain that we’ll succeed.
"He is happy to stay here and has a wonderful rapport with the coach and team but his wife and children want the beaches of Santos. I hope to convince him to stay here, though he is virulently asking to leave Milan and go back home."
Meanwhile, Pato's agent, Gilmar Veloz, told ESPN Brazil that his client would be only too happy to move to Corinthians should the offer be accepted.
He said: "If there is this possibility then it will be a very important step for his career to go and play for a two-time world champion club. To come and work here can make things easier for him and we hope that something can be done.
"We need to stay calm as we are talking about Milan and Corinthians, two of the biggest clubs in the world. There is great respect and affection between the two outfits, but there is nothing official at this stage."