The 29-year old has returned to Italy to be with his family with Di Canio wishing the defender every success for the future.
Speaking to the official website, Di Canio said: “I am very sad and he is sad too. He had a great experience with us and wanted to stay but life is more important sometimes.
“He was alone in England with his family back in Italy and I wish him the best of luck. He behaved very well when he was here and is a good footballer.
“He wasn’t happy off the pitch so he couldn’t give his best.
“I would like to wish him all the best and also to his family as well as thanking him for the job he has done here with Swindon.”