Rasmus Hojlund is urging Atalanta to sell him to Manchester United.
United have had an offer of 40m for the Dane rejected by La Dea, which rate him closer to double that amount.
Hojlund agreed personal terms with United last month and has been counting on the two clubs reaching a fee for him.
But with Atalanta refusing to budge on their assessment, there's a risk of United walking away.
La Gazzetta dello Sport says Hojlund is becoming increasingly anxious and has instructed his agents to push Atalanta to reach an agreement with United.