Chelsea boss Antonio Conte remains keen on signing Napoli defender Kalidou Koulibaly.
Chelsea were linked with a move for Koulibaly before the start of this season. But Napoli held firm on their reluctance to sell the centre-back.
However, Calciomercato.com says Napoli have now named their price for the Senegal international.
Napoli want between £53m (€60m) and £62m (€70m) for the player.
Chelsea ended the summer with a net spend of just under £90m - the third highest outlay in the Premier League after Manchester City and Manchester United.