A review of the weekend's action in the Italian Serie A.
Fernando Llorente scored the winner on his full debut as Juventus came from behind to beat promoted Hellas Verona 2-1 in Turin on Sunday.
The Gialloblu arrived as giant-killers having beaten AC Milan on the opening day of the Serie A season but reigning champions Juve failed to heed the warning and conceded an opportunistic goal from Fabrizio Cacciatore.
Carlos Tevez responded emphatically with a fiercely-struck equaliser and Llorente, making his bow at the Juventus Stadium, completed the turnaround with a header deep into first-half stoppage time.
Mario Balotelli lost a personal battle with Pepe Reina as Napoli claimed their first win over AC Milan 2-1 at San Siro in 27 years to go joint top of the table with derby winners Roma.
Diego Maradona was in the visiting team when Napoli last won this fixture in 1986 and South American pair Miguel Britos and Gonzalo Higuain scored the goals to stun Milan 2-1 on home turf on Sunday night.
An end-to-end game, which saw Napoli stay 100 per cent perfect with four wins from four games and join Roma in a share of first place, was most notable for the duel between the mercurial Balotelli and visiting keeper Reina.
The on-loan Liverpool man flicked Balotelli's second-half penalty wide to put paid to the striker's flawless record from the spot but the irate Italian did sneak home a late consolation before seeing red after the final whistle.
Roma struck twice in the second half to beat Lazio 2-0 in Sunday's Eternal City derby and retain their 100 per cent record.
The Giallorossi had failed to beat their city rivals in their previous five meetings - including a 1-0 loss in the Coppa Italia final back in May - and this match looked to be heading the same way at the Stadio Olimpico until Federico Balzaretti gave Roma a 63rd-minute lead.
Lazio, playing as visitors, shot themselves on the foot when substitute Andre Dias was shown a straight red for a last-man challenge on Francesco Totti with nine minutes remaining.
Substitute Adam Ljajic then put the game beyond Lazio's reach when he earned and converted a penalty deep in stoppage time after he was brought down by Cristian Ledesma.
Inter Milan continued their fine start to the Serie A season by running riot in a thumping 7-0 victory at recently-promoted Sassuolo.
The Nerazzurri never looked back after taking a seventh-minute lead through Rodrigo Palacio and were three goals to the good by half-time after Algerian midfielder Saphir Taider's effort and Raffaele Pucino's own goal.
Ricardo Alvarez got on the scoresheet at the beginning of the second half, while substitute Diego Milito added a brace either side of Esteban Cambiasso's fine strike to seal an impressive rout.
A fourth goal in as many Serie A games from Giuseppe Rossi helped Fiorentina get back to winning ways at the expense of Atalanta.
The former Manchester United and Parama striker, who scored once against Catania and twice against Genoa before drawing a blank against Cagliari, made up for the absence of injured strike partner Mario Gomez with the second goal in a 2-0 win at the Stadio Atleti Azzurri d'Italia.
Mati Fernandez had given Fiorentina the lead before the break.
The victory puts Vincenzo Montella's men back among the leading pack following last weekend's disappointing draw with Cagliari while stuttering Atalanta suffered a third defeat in four league games.
Alessio Cerci scored from the penalty spot to hand Torino a narrow 2-1 victory over 10-man Bologna at the Renato Dall' Ara stadium.
Bologna's Cesare Natali cancelled out Danilo D'Ambrosio's opener in the 29th minute, but Cerci put Torino back in front when he converted a penalty on the stroke of half-time after Omar El Kaddouri had been brought down by Francesco Della Rocca in the area.
The home side had to play the entire second half a man down after Natali was sent off for dissent during the interval and it proved to be a hammer blow for the Rossoblu, who failed to threaten a determined Torino side after the restart.
Catania held Parma to a goalless draw at the Angelo Massimino Stadium to clinch their first point this season.
The heavy rain which had fallen earlier in the day in Catania made playing conditions difficult for both sides.
The result will please Catania coach Rolando Maran, whose team went into the encounter on the back of three consecutive defeats and having given away seven goals.
However, Catania's struggles in front of goal - they have found the net just once - continue.
Parma, like Catania, remain winless after four games coach Roberto Donadoni will be disappointed that his players could not make the most of their chances.
On Saturday, Livorno had missed the chance to move level with the leaders following a goalless draw at Genoa.
The away side were nonetheless content with an away point, especially after young goalkeeper Francesco Bardi made an athletic save in injury-time to keep out Emanuele Calaio's point-blank header.
Thomas Manfredini also hit the crossbar with a looping header late in the game.
Sampdoria defender Lorenzo De Silvestri scored the last of three injury-time goals to deny Cagliari all three points in a 2-2 draw at the Nereo Rocco stadium.
The hosts, who last week benefited from Mauricio Pinilla's stoppage-time goal in their draw with Fiorentina, looked on course for victory when Albin Ekdal put them ahead midway through the first half.
Even though Manolo Gabbiadini equalised very late on, Daniele Conti gave Cagliari the lead again immediately after before De Silvestri popped up in the third minute of time added on and ensure the match finished as a 2-2 draw.
Chievo recovered from conceding in the first minute to claim their first Serie A win of the season 2-1 at home to Udinese.
Just 50 seconds had passed when Maicousel pounced on some forgettable home defending to run the ball into an empty net.
Chievo recovered from their early calamity to equalise through Sergio Pellissier after 13 minutes before Luca Rigoni claimed the match-winner just before half-time with a deflected strike.