Udinese vice president Stefano Campoccia reveals Napoli have made a transfer enquiry for Rodrigo De Paul.
The Argentine playmaker is one of Serie A's hottest commodities, but Udinese won't let him leave for less than €40m.
Liverpool, Leeds, Atletico Madrid, Inter and Juventus have been linked with securing the player's services, but Napoli have also emerged as credible contenders to land the 26-year-old.
"De Laurentiis has made a transfer enquiry for De Paul, but he must understand that we are talking about an expensive footballer," Udinese's vice president Campoccia told Radio Marte.
"When I see De Paul play, I reconcile myself to football," Campoccia added.
De Paul's contract with Udinese expires in 2024.
He has six goals and seven assists in 31 appearances across all competitions with Udinese so far this season.
"I set no limits for myself," De Paul told Sky Sport back in January.
"Once you join a National team like Argentina, you feel you are ready to play with anyone. I hope I am going to have a great career, and I am working to achieve it."