Adriano Galliani has revealed Kaka's wage demands are stalling a move back to AC Milan and stated the player "must make sacrifices" if he is to return to the club.
The Real Madrid midfielder's time at the Santiago Bernabeu has not gone according to plan and with the Rossoneri themselves enduring a tough campaign, the pair could be reunited - but only if financial barriers are overcome before the end of January.
"I'm more pessimistic than yesterday, it's very hard but we'll still try to sign him. The negotiation isn't easy due to Kaka's wage. No one in Italy can pay a €5m salary," he explained to reporters.
"He must make sacrifices to come back to Milan."
The vice-president also added that any move would help Kaka's international career, adding: "AC Milan would be a good showcase for the World Cup, and there are 15,000 fans here who haven't been seen since Kaka left."
Massimiliano Allegri also spoke about the possibility of bringing the Brazil international back to Italy and denied claims he was against the transfer.
"There are talks in progress for Kaka, an important negotiation process if this great return is to occur," he said.
"I agree with the club and Adriano Galliani on everything, so my position has never been opposed to that of the club. There is an exchange of ideas, certainly, but it’s not true that I don’t want Kaka."
Allegri did, however, rule out the prospect of bringing David Beckham to the club, joking that it was impossible to "wipe out the player's birth certificate", in relation to their new youthful recruitment policy.