Napoli striker Lorenzo Insigne will play out the season at Pescara.
The youngster's form has attracted transfer interest from England.
"Insigne belongs to Napoli and sporting director Riccardo Bigon really believes in him," agent Antonio Ottaiano told Il Sussidiario.
"However, the agreed deal between the two clubs is clear. Insigne was sent to Pescara to learn and grow under a maestro like Zeman.
"A January move to Napoli would just be too soon. As already agreed with Bigon, a decision on his future will be made at the end of the campaign.
"There is no rush and the boy must mature with calm. He wants to play for Napoli, but he has to take it one step at a time."