Palermo president Maurizio Zamparini has set Javier Pastore's asking price. Zamparini revealed this week he has already rejected a recent offer from Chelsea for the Argentina international.
"Pastore could leave, but the starting price for negotiations is 50m," said Zamparini.
"He is one of the few world class players who are left in Italy."
Chelsea's offer is understood to have been for €33 million.
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