An agreement has been struck, says AS, which will see Juve pay £14 million immediately and a further £1 million based on appearances and success.
"Gabriel has fulfilled a cycle in Zaragoza and his position already is definitive: one leaves, leaves for Juventus," said Gamarnik.
"Juve are in a big hurry to close the operation. We have been talking for a long time.
"In a week or ten days it must be resolved. I insist on which Gabriel has fulfilled a cycle and wants to leave for Juventus."