Clarence Seedorf
After his retirement in 2008, Fiori became a goalkeeping coach at A.C. Milan until 2016. After a brief interlude with the Chinese side Shenzhen, and then Spanish side Deportivo La Coruña, a club coached by former teammate Clarence Seedorf, Milan announced the return of Fiori as goalkeeper coach on 5 July 2018. In August 2020, he was appointed as Napoli goalkeeper coach.