Napoli’s 1-0 defeat by Arsenal in their opening Champions League match means they have lost three of their first four competitive games this season.
The Serie A side had already suffered two defeats in the league before narrowly losing to the London club. It is the first time Napoli have started a season with three defeats in four matches since 2000.
That campaign ended with Napoli finishing second from bottom of the table and being relegated to Serie B. Roma won the title that season, their most recent championship triumph.
Napoli’s next match is against Bologna.