Roma have been penalised with a 3-0 defeat following an administrative error in the make-up of their matchday squad in Saturday's 0-0 draw against Hellas Verona.
Roma listed 23-year-old Amadou Diawara in the under-22 section of their squad, rather than the 25-man squad list for senior players.
Guinea international Diawara played 89 minutes in the Serie A stalemate.
Italian newspaper La Gazzetta dello Sport expects Roma to appeal.
Paulo Fonseca's side still have spare spaces in their 25-man squad list, and the club are expected to argue the mistake was made without any intention to violate the rules.
It is not the first time Serie A has handed down a defeat for formal errors.
In 2016, Sassuolo lost 0-3 to Pescara for fielding Antonino Ragusa, who was not in their official player list.