The Poland midfielder is adamant he is happy and settled in Naples.
"I don't know where these rumours come from, I don't think my journey at Napoli will end this summer," he told Polish media while on international duty.
“I have an important contract with the club, which will last two more years. I feel well at Napoli, even if I read different things somewhere.
“I've never said I want to leave. It is true that I struggled in the second part of the campaign, but I won't leave because of that. I want to continue at Napoli because it's a great club."