Calafiori took in former club Bologna's clash with Parma ahead of joining up with the Italy squad this week.
He said at his Azzurri media conference: "Playing here certainly gives me something extra and I will try to make the most of that on the field. I am so happy to be playing in front of my friends and family.
“Last season was the first time I really felt important for a club and a whole city, so I have wonderful memories of my time at Bologna. I felt like visiting and was pleased to get that opportunity.”
He added, “The Premier League is very different to Serie A, so it’s always good to learn to play with a different style and tempo. I hope that I can set an example for other young players to follow.
“The biggest thing I noticed after the Euros was without doubt the difference in the intensity of training and games. Every game is hard-fought, nobody thinks about defending and that makes it more entertaining.”