Napoli eventually made the most of their superiority as Lorenzo Insigne struck late on to beat Liverpool 1-0 at the Stadio San Paolo.
Lorenzo Insigne struck in the 90th minute as Napoli claimed a deserved 1-0 win over Liverpool to leave Champions League Group C wide open.
The Reds struggled to make much of an impression on the match as their blunt attack were kept quiet and Napoli finally made their superiority count at the end, moving themselves top of the early table with four points.
The first half was sadly lacking in quality, with neither goalkeeper remotely busy, but Napoli controlled proceedings and at least threatened to trouble the Reds.
LIVERPOOL (4-3-3): Alisson; Trent Alexander-Arnold, Joe Gomez, Virgil van Dijk, Andrew Robertson; Naby Keita, James Milner, Georginio Wijnaldum; Mohamed Salah, Roberto Firmino, Sadio Mane.
Napoli subs: Simone Verdi, Dries Mertens, Piotr Zielinski, Elseid Hysaj, Orestis Karnezis, Marko Rog, Amadou Diawara.
NAPOLI (4-3-3): David Ospina; Nikola Maksimovic, Raul Albiol, Kalidou Koulibaly, Mario Rui; Allan, Marek Hamsik, Fabian Ruiz; Jose Callejon, Arkadiusz Milik, Lorenzo Insigne.