Parma coach Roberto D'Aversa is desperate not to lose Dejan Kulusevski in January.
The Sweden midfielder is on a season-long loan from Atalanta and is interesting Wolves, Arsenal and Juventus.
D'Aversa said, "We were good at believing in him but he was also good at letting us bet on him. There are so few decisive players coming out of the Primavera. He must determine more in terms of goals and assists.
"In football it is difficult to remain at certain levels.
"I don't even want to think that in January we could lose him."
