Zamparini says the playmaker is already superior to the much-sought-after Brazilian Neymar.
He insisted: "Pastore is worth two Neymars. He is one of those who will win the Ballon d'Or in the coming years. He is a champion.
"Like him there are only Messi, Cristiano Ronaldo, Iniesta, Rooney - and this quality player is only 22 years old."