The Italian club are looking for a new goalkeeper after Pepe Reina left for Milan at the end of last season and new signing Alex Meret broke his arm after just day training with the club.
Napoli's outspoken president took to a local radio station to confirm that his team are looking at signing one of four goalkeepers before the transfer window shuts on Friday.
"There are four in contention: Ochoa, Mignolet, Ospina and Tatarusanu. It is true that Ospina could arrive, we are negotiating, there are still some differences on the requests." he told 'Radio Kiss Kiss Napoli'.
Both Ospina and Simon Mignolet have become third choice keepers, after Bernd Leno arrived at Ospina's Arsenal and Alisson joined Mignolet's Liverpool.
While the English transfer window has shut, the loan market remains open until the end of August which means that the 'Partenopei' still have the chance to add either Mignolet or Ospina to their squad.