Napoli insist star midfielder Marek Hamsik is not for sale.

Manchester United have been linked with an end-of-season move for the Slovakia star.

"If we rejected the rumours about a friend like (Carlo) Ancelotti and Chelsea it is obvious that we also reject these," Napoli director of sport Riccardo Bigon told Radio Marte when asked about United.

"We have no intention of giving away Marek."

Hamsik's Italian representative Fulvio Marrucco insists there has been no contact with any English clubs.

"It's a normal thing that a player with the potential of Hamsik is followed with interest by big clubs," he told Napolipress.

"But I haven't had direct contact with any English teams.

"Marek now only thinks of Napoli and the World Cup in South Africa.

"All the assumptions about the market are not true, there aren't negotiations with any team and there isn't the will of the player to change club."