Simone Zaza could be on his way out of West Ham - less than two months after joining. Valencia boss Cesare Prandelli is keen on the Italy striker who is on a season-long loan at West Ham. Zaza has struggled to settle at West Ham who have a clause in his contract to make the transfer a £10m permanent deal if he plays enough games. But former Italy boss Prandelli is keen to try and do a January deal while Napoli are also watching developments. West Ham boss Slaven Bilic claimed that he had spent a year trying to sign Zaza but the 25-year-old - who is on loan from Juventus - has yet to score. But if the deal does not work out then it would be a blow for Bilic who was hoping he would be a big lift for his squad.