Napoli president Aurelio de Laurentiis has blasted the agent of Marek Hamsik.
Hamsik is the subject of intense press speculation linking him with AC Milan.
Mino Raiola, who also represents Zlatan Ibrahimovic and Mario Balotelli among others, is pushing for the Slovak to join Milan this summer.
"Marek is a lovely lad and I care for him very much," explained De Laurentiis in the Corriere dello Sport.
"Raiola advised me to sell him. I replied: Mind your own business."