Sorrentino says Chievo president Luca Campedelli priced him out of the transfer.
"Campedelli explained to me that for him I am among the top three Italian goalkeepers and whoever wants me must pay a big figure," Sorrentino told La Gazzetta dello Sport.
"The President is like this. He is honest and straightforward, and his show of respect fills me with pride. I could have gone to Juve, Samp or Genoa, but I never look back. And I think that destiny will give me a greater joy in the future."