Karnezis spent last season on-loan with Watford.
“I read the news that came out of Italy last night," Vasileios Panagiotakis said on Radio Kiss Kiss Napoli.
“At this point I'm waiting for a call at any moment. I hope the deal can finally be done, we'll wait and see what happens."
Karnezis is now close to joining the Partenopei, along with his young teammate Alex Meret.