Napoli have lost ground on Serie A leaders Juventus as they conceded two late goals to lose 3-2 to Bologna at the Stadio San Paolo.
Manolo Gabbiadini struck with just 10 minutes on the clock to give the visitors the lead, but Napoli got themselves level just five minutes after the restart thanks to Alessandro Gamberini.
The home side then took the lead in the 70th minute as Edinson Cavani headed in Lorenzo Insigne's cross.
Napoli looked on course for the three points, only for Bologna to level in the 86th minute through Panagiotis Kone's acrobatic volley.
The shock victory was sealed just three minutes later when Daniele Portanova pounced.
