Overview
- The fixture is set for Wednesday, 9 September with kick‑off at 8pm BST at the Stadio Diego Armando Maradona.
- Arsenal arrive unbeaten in domestic play as reigning Premier League champions and are among the early Champions League favourites in Opta and bookmaker forecasts.
- Napoli have struggled for form with consecutive defeats, most recently surrendering a 2‑0 lead to lose 3‑2 at Inter, and must cope without several players.
- Key absences and doubts could shape lineups: William Saliba is ruled out until November while Jurrien Timber and Cristhian Mosquera are doubtful, prompting expected rotation from Mikel Arteta.
- The match matters because early points in the new league‑phase format affect qualification paths, so the tactical duel between Arsenal’s possession game and Napoli’s counterattack and the appointment of referee Glenn Nyberg are all factors to watch.