Bonaventura is expected to be on the move this summer.
"Talking about the transfer market now is a bit premature," Giocondo Martorelli told IamNaples.
"A lot of teams will have new Coaches on their benches next season. Napoli have to choose a replacement for Mazzarri.
"If [Rafael] Benitez is there, I doubt he would know about Giacomo.
"My client though is highly respected by the backroom staff at Napoli, and they have been following him diligently for a year now."