Napoli have warned they will not allow Kalidou Koulibaly to leave in a cut-price deal, insisting the defender's value has not budged during the coronavirus crisis.
The Senegalese centre-back, who turns 29 later this month, has frequently been linked with a move, including to Premier League duo Manchester United and Liverpool.
Clubs across Europe have been hit by the impact of the pandemic, with the financial toll leading to suggestions it could have a major effect on the transfer market.
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Yet Napoli have no intention of allowing players to leave below their full value, and sporting director Cristiano Giuntoli said it will take top dollar to prise away any of the club's stars.