Napoli president Aurelio De Laurentiis insists coach Walter Mazzarri is staying with the Serie A club.
Speculation has been rife in Italy that Mazzarri could replace Luigi Del Neri at Juventus next season.
But De Laurentiis said: "Mazzarri has a contract with us and I have a contract with him.
"I don't believe there is any friction between us. Nothing has changed with respect to the past."
The 49-year-old has yet to confirm whether he intends to honour his contract with Napoli, which expires in June 2014.
Mazzarri said: "I will not talk about my future until the end of the campaign.
"The club knows that every year I like to sit down and reflect on what has been done and what needs to be done."
The former Sampdoria boss joined Napoli in October 2009 following the dismissal of Roberto Donadoni.
He led the club to a sixth-place finish in his first year in charge.
The Partenopei have been one of the surprise packages in Italy's top flight this campaign and lie third in the standings, just one point behind second-placed Inter Milan, with three games remaining.
