Napoli have confirmed their interest in the Honduras international but sporting director Riccardo Bigon claims they are not happy with the amount of money Spurs are demanding.
"Wilson interests us a lot," Bigon told Tutto Napoli.
"But negotiations have stalled for now.
"Tottenham are ready to sell him outright, but they want a lot of money in order to let him go.
"I've spoken with his agent as the player is currently on holiday.
"Everything should become clearer in seven to 10 days' time. Let's wait and see what happens."