But Rossetto has admitted Lavezzi could still leave Napoli in the summer.
“Napoli own the player, and they have the last word,” the agent told La Gazzetta Dello Sport.
“I can confirm that an important offer exceeding €20million was made, but De Laurentiis did not consider it sufficient.”
He continued: “Will he stay? That depends on Napoli. It’s like owning a car. If it’s just an average motor then you don’t have to spend much on maitainence.
“But, if it’s a high spec type, then it will cost you more,” added the agent, in reference to Napoli’s costs of keeping their man.
“Without going into too much detail, Lavezzi’s wages would be tripled.”