Di Lorenzo handed in a transfer request at the end of last season.
Mario Guiffredi told TV Play: "A moment of great friendliness, great availability. I explained to the coach the reasons that led to our decision to leave Napoli The coach strongly reiterated his desire to retain Giovanni, as we did to pursue our own path.
“I can only say that football is like life: anything can happen."
On interest from Juventus, Guiffredi insisted: "There are many rumours about the agreement that we would have reached with Juventus for Di Lorenzo.
“I am convinced that all this commotion arises only because a club called Juventus was brought into play. I can firmly say that I have never spoken with Juventus and therefore with (sporting director Cristiano) Giuntoli. Neither the player nor I have ever been contacted by anyone from Juventus.
"Among other things, it is not excluded that Di Lorenzo could go to other clubs, it's not just Juventus."