Italy coach Antonio Conte believes Napoli will soon shake off their form slump.
The Partenopei have lost two of their opening three Serie A games.
"Napoli are suffering after the disappointment in the Champions League. There is disappointment for the fans, and also for the players," Conte said.
"It's hard, because after working for a year to qualify [for the Champions League], you're out after two games.
"However, there's no use crying over spilt milk and missed opportunities. They have a great team, and a great Coach.
"Benitez? His record speaks for itself, he's a winner. He won a trophy in his first year, and I hope for Napoli and for Serie A that they get back to their best."