Davide Zappacosta says his experience at Chelsea helped him progress as a player and person.
The Italian fullback joined Roma on loan until the end of January on Wednesday.
"I am pleased to join Roma, after an experience overseas that helped me progress as both a player and a person," Zappacosta told Roma's website.
"Being able to play for a great club like this is a huge motivation - I cannot wait to start training alongside my new teammates."