Milan have reportedly given Santos permission to negotiate directly with Robinho to rush through a transfer.
According to La Gazzetta dello Sport and Sky Sport Italia, the Rossoneri have told Santos they can begin formal talks over personal terms.
A fee has not yet been decided, but time is of the essence as the Brazilian transfer session closes on July 15.
Vice-President Adriano Galliani confirmed Milan are “closer” to a deal with Santos, as they lowered their asking price from €10m to €8.5m and agreed to accept payment in instalments.
Robinho has already said he will cut his wages to push the move through to his former club.