Match ends, Juventus 1, Napoli 0.
Defending champions Juventus moved top of Serie A for the first time this season as Simone Zaza's late strike saw off previous leaders Napoli in Turin.
Napoli looked set to maintain their two-point lead until substitute Zaza's deflected 18-yard shot flew past away keeper Pepe Reina.
Juve, who are bidding for a fifth straight Scudetto, have now won 15 successive league games.
Napoli barely tested Gianluigi Buffon as their eight-match winning run ended.
The visitors came closest to threatening when Juve defender Leonardo Bonucci's vital interception stopped Serie A's top scorer Gonzalo Higuain from making contact with a dangerous right-wing cross.
Argentina international Higuain had scored 24 goals in his previous 24 league matches, helping Napoli become the league's most prolific attack.
But, despite playing confidently and refusing to sit back, the visitors could not break down a Juventus defence that has only conceded 15 goals this season.
Zaza was introduced for Spain striker Alvaro Morata shortly before the hour mark, eventually making the decisive impact to spark joyous celebrations among the home players and supporters.
"I hope it's a decisive goal as far as the title race is concerned," said 24-year-old Italy international Zaza. "The good thing is it's now in our hands."
- 19BonucciSubstituted forRuganiat 52'minutes
- 16Ju Cuadrado
- 8MarchisioBooked at 86mins
- 10PogbaBooked at 67mins
- 21DybalaSubstituted forLobo Silvaat 86'minutes
- 9MorataSubstituted forZazaat 58'minutes
- 11de Carvalho Andrade Lima
- 12Lobo Silva
- 25Murara Neto
- 5AllanSubstituted forGabbiadiniat 90'minutes
- 7CallejónBooked at 63mins
- 24InsigneSubstituted forMertensat 77'minutesBooked at 90mins
- 19López Silva
- 22Vasconcellos Ferreira
- 77El Kaddouri
- Daniele Orsato
- Shots on Target
Second Half ends, Juventus 1, Napoli 0.
Kalidou Koulibaly (Napoli) is shown the yellow card for a bad foul.
Foul by Kalidou Koulibaly (Napoli).
Juan Cuadrado (Juventus) wins a free kick in the attacking half.
Attempt missed. Manolo Gabbiadini (Napoli) right footed shot from outside the box misses to the left. Assisted by Marek Hamsik.
Foul by Manolo Gabbiadini (Napoli).
Juan Cuadrado (Juventus) wins a free kick in the defensive half.
Substitution, Napoli. Manolo Gabbiadini replaces Allan.
Goal! Juventus 1, Napoli 0. Simone Zaza (Juventus) left footed shot from outside the box to the bottom right corner. Assisted by Patrice Evra.
Substitution, Juventus. Alex Sandro replaces Paulo Dybala.
Claudio Marchisio (Juventus) is shown the yellow card for a bad foul.
Dries Mertens (Napoli) wins a free kick in the attacking half.
Foul by Claudio Marchisio (Juventus).
Attempt saved. Paul Pogba (Juventus) right footed shot from outside the box is saved in the centre of the goal. Assisted by Simone Zaza.
Faouzi Ghoulam (Napoli) wins a free kick on the left wing.
Foul by Juan Cuadrado (Juventus).
Raúl Albiol (Napoli) wins a free kick in the defensive half.
Dangerous play by Simone Zaza (Juventus).
Attempt missed. Gonzalo Higuaín (Napoli) right footed shot from outside the box misses to the left.