Palermo president Maurizio Zamparini has called on Abel Hernandez not to waste his talent.
Hernandez has failed to catch fire so far this season.
"I'm disappointed by Hernandez," Zamparini said. "He needs to get into his head that he must live the life of an athlete.
"He needs to stop going to nightclubs and he needs to stop drinking beer, otherwise he won't go very far down the road."