Match ends, Juventus 3, Napoli 0.
Juventus moved up to second in Serie A and within a point of leaders Roma with victory at home to Napoli.
The visitors had started the day in second but were behind after just two minutes through Fernando Llorente's header.
Andrea Pirlo curled in a stunning second-half free kick, before Paul Pogba's volley made the win safe.
Angelo Ogbonna was sent off for Juventus late on when he was shown his second yellow for a reckless challenge.
It was a dominant display from the defending champions, who have now won 10 of their 12 league games this season.
Further good news for the Turin side was that leaders Roma could only draw against Sassuolo earlier on Sunday. They have now picked up just two points from their last two games.
Roma's defeat meant both Juventus and Napoli knew victory would be a real boost to their title ambitions.
But the visitors' hopes were dashed two minutes in when Llorente tapped in after good work by Carlos Tevez.
Napoli were struggling to find their rhythm and barely threatened the hosts - a fact highlighted by the half-time statistics which showed they had only managed one shot on target.
It was their goalkeeper Pepe Reina who prevented Juventus from taking a bigger lead into the break, as he kept out efforts from Tevez and Llorente.
Napoli improved slightly after the restart and forced home keeper Gianluigi Buffon into his first real save when he palmed away Lorenzo Insigne's curled free-kick.
Reina again kept out Juventus as he first denied Arturo Vidal with a shot from distance before stopping Tevez's follow up.
But there was nothing he could do when Juventus doubled their advantage with 16 minutes remaining.
Napoli gave away a free-kick 25 yards from goal and Pirlo stepped up to curl a trademark set-piece superbly over the wall and beyond the dive of Reina.
Minutes later an equally stunning goal wrapped up the win as Pogba flicked a square pass into the air before volleying into the back of the net.
Defender Ogbonna took some of the shine off the win when he was shown a second yellow card for a needless foul in the closing stages.
- 5OgbonnaBooked at 83mins
- 19BonucciBooked at 51mins
- 23VidalBooked at 72minsSubstituted forMarchisioat 86'minutes
- 10TévezSubstituted forPelusoat 84'minutes
- 14LlorenteSubstituted forQuagliarellaat 88'minutes
- 11De Ceglie
- 7CallejónSubstituted forMertensat 71'minutes
- 88InlerSubstituted forZapataat 79'minutes
- 17HamsikBooked at 61mins
- Gianluca Rocchi
- Shots on Target
Second Half ends, Juventus 3, Napoli 0.
Corner, Napoli. Conceded by Kwadwo Asamoah.
Attempt saved. Lorenzo Insigne (Napoli) right footed shot from outside the box is saved in the bottom right corner. Assisted by Dries Mertens.
Attempt saved. Federico Fernández (Napoli) left footed shot from the centre of the box is saved in the bottom right corner. Assisted by Lorenzo Insigne with a cross.
Corner, Napoli. Conceded by Mauricio Isla.
Attempt missed. Federico Fernández (Napoli) right footed shot from outside the box is close, but misses the top left corner. Assisted by Raúl Albiol.
Substitution, Juventus. Fabio Quagliarella replaces Fernando Llorente.
Foul by Christian Maggio (Napoli).
Kwadwo Asamoah (Juventus) wins a free kick in the defensive half.
Attempt saved. Dries Mertens (Napoli) right footed shot from outside the box is saved in the bottom right corner. Assisted by Raúl Albiol.
Substitution, Juventus. Claudio Marchisio replaces Arturo Vidal because of an injury.
Substitution, Juventus. Federico Peluso replaces Carlos Tévez.
Second yellow card to Angelo Ogbonna (Juventus) for a bad foul.
Dries Mertens (Napoli) wins a free kick in the attacking half.
Foul by Angelo Ogbonna (Juventus).
Goal! Juventus 3, Napoli 0. Paul Pogba (Juventus) right footed shot from outside the box to the bottom right corner. Assisted by Arturo Vidal.
Substitution, Napoli. Duván Zapata replaces Gökhan Inler.
Attempt saved. Lorenzo Insigne (Napoli) left footed shot from the left side of the box is saved in the bottom left corner. Assisted by Marek Hamsik.
Valon Behrami (Napoli) wins a free kick in the defensive half.