Match ends, Napoli 2, Juventus 1.
Champions Juventus continued their miserable start to the Serie A season with defeat at Napoli.
Lorenzo Insigne and Gonzalo Higuain scored for the hosts before Mario Lemina pulled a goal back.
For Juve, champions for the past four seasons, it was a third defeat in six league matches, as many as in the whole of their last campaign.
They are already 10 points behind leaders Inter Milan, who host Fiorentina on Sunday.
Napoli moved into the top half with a second win of the season.
Juventus host Sevilla in the Champions League on Wednesday, looking to build on their opening group victory at Manchester City earlier this month.
Former Arsenal striker Gervinho scored in the league for the first time since November as Roma returned to form with a 5-1 victory over newly promoted Carpi.
Coach Rudi Garcia was under pressure after picking up one point from two matches against Sassuolo and Sampdoria.
But his side responded with Kostas Manolas, Miralem Pjanic, Mohamed Salah and Lucas Digne scoring their other goals.
However, injuries to Edin Dzeko, Francesco Totti and Seydou Keita threatened to take the shine off the result.
- 31GhoulamBooked at 50mins
- 17HamsikSubstituted forLópez Silvaat 80'minutes
- 7CallejónBooked at 55mins
- 9HiguaínSubstituted forGabbiadiniat 85'minutes
- 24InsigneSubstituted forMertensat 40'minutes
- 4Adriano Buss
- 19López Silva
- 22Vasconcellos Ferreira
- 77El Kaddouri
- 20PadoinBooked at 87minsSubstituted forLobo Silvaat 89'minutes
- 19BonucciBooked at 51mins
- 33EvraBooked at 53mins
- 11de Carvalho Andrade LimaSubstituted forJu Cuadradoat 64'minutes
- 21DybalaSubstituted forMorataat 71'minutesBooked at 90mins
- 12Lobo Silva
- 16Ju Cuadrado
- 25Murara Neto
- Daniele Orsato
- Shots on Target
Second Half ends, Napoli 2, Juventus 1.
Álvaro Morata (Juventus) is shown the yellow card.
Manolo Gabbiadini (Napoli) wins a free kick in the defensive half.
Foul by Álvaro Morata (Juventus).
Attempt blocked. Álvaro Morata (Juventus) right footed shot from the left side of the box is blocked. Assisted by Simone Zaza.
Foul by Dries Mertens (Napoli).
Juan Cuadrado (Juventus) wins a free kick on the right wing.
Foul by Manolo Gabbiadini (Napoli).
Giorgio Chiellini (Juventus) wins a free kick in the defensive half.
Attempt missed. Manolo Gabbiadini (Napoli) left footed shot from long range on the left misses to the left. Assisted by Dries Mertens.
José Callejón (Napoli) wins a free kick on the right wing.
Foul by Patrice Evra (Juventus).
Substitution, Juventus. Alex Sandro replaces Simone Padoin.
Foul by David López (Napoli).
Juan Cuadrado (Juventus) wins a free kick in the defensive half.
Simone Padoin (Juventus) is shown the yellow card for a bad foul.
Dries Mertens (Napoli) wins a free kick on the left wing.
Foul by Simone Padoin (Juventus).
Substitution, Napoli. Manolo Gabbiadini replaces Gonzalo Higuaín.