AC Milan vice-president Adriano Galliani admits they must sell to buy Manchester City striker Mario Balotelli.
Milan are keen to sign the Italy international.
"Balotelli? It's a sentimental matter, but enough of this," he said. "We'd have to get down to 26-27 players for him to arrive because there really are too many of us.
"If five don't go, there will be no new signings."