Napoli winger Noah Lang was omitted from the squad for the Champions League match against Arsenal because of a disciplinary breach.
The Netherlands international was left out as Napoli suffered a 1-0 home defeat by the London club in the opening round of the league phase.
Lang has made two appearances in Serie A this season but has yet to register a goal or assist.
Napoli’s next fixture is against Bologna on 13 September. The fourth-round Serie A match is scheduled to begin at 19:00 Moscow time.