Piotr Zielinski rejoined the squad on Tuesday having enjoyed a break following Poland's involvement at the World Cup.
The Azzurri are preparing for their friendly match against Lille at the Stadio Maradona on Wednesday evening (20:00 CET kick-off).
Starting with some warm-up work, the squad did tactical drills in groups followed by technical work and a mini-match to finish.
Amir Rrahmani completed nearly all of the session with the rest of the squad.
Salvatore Sirigu did personalised work on the pitch while Diego Demme trained separately in the gym.