The Premier League side will have to make his move permanent should he make 14 appearances for the club, but it now appears West Ham have already decided to pull the plug.
There have been reports claiming Napoli and Valencia are keen on signing Zaza, but the Spanish side seem to have an advantage.
According to a latest report on Levante El Mercantil Valenciano, Valencia are ready to sell players to raise funds in the January transfer window.
West Ham’s Zaza is liked by both Cesare Prandelli and Jesús García Pitarch, and Levante EMV believe his arrival is quite feasible for the club especially with things not working for him in London.
Napoli’s poor relations with Juventus certainly gives Valencia the upper hand, but the deal could be complicated and it remains to be seen if an agreement can be reached in January.