Tuttosport says Ranieri has given the green light to Juve management to bid for the Slovakia international, who has only just renewed his contract. However, that won't put off Juve, which are willing to more than double Hamsik's new £500,000-a-year deal.

Napoli are reluctant to sell, but sports director Pierpaolo Marino is interested in Juve striker Vincenzo Iaquinta and could be open to discussing a potential swap agreement.