There are four new players: Pisa centre-back Edoardo Goldaniga, Crotote defender Emanuele Suager, Genoa midfielder Stefano Sturaro and Siena striker Valerio Rosseti.
The full list of players called up is as follows:
Francesco Bardi, Nicola Leali, Mattia Perin; Federico Barba, Cristiano Biraghi, Filippo De Col, Edoardo Goladinga, Nicola Murru, Daniele Rugani, Emanuele Suagher, Davide Zappacosta; Daniele Baselli, Danilo Cataldi, Lorenzo Criseting, Jacopo Dezi, Andrea Molina, Stefano Sturaro, Federico Viviani; Andrea Belotti, Domenico Berardi, Federico Bernardeschi, Riccardo Improta, Valerio Rosseti, Marcello Trotta.
The mini-camp will end with a friendly against Fiorentina U21 team on Tuesday, April 29.