The Albania international is not part of Carlo Ancelotti's plans this season.
“Hysaj will probably leave in January, seeing as his contract is running down," agent Mario Giuffredi told Rete Sport.
“Napoli value Hysaj at €25-30m, but the more time goes by, that will drop. We informed the club a while ago that we didn't want to renew the contract.
“Don't forget that for three years, Hysaj was the best right-back in Serie A, so he can go to at most another two or three clubs of that level."