Higuain back as Juve reclaim top spot from Napoli

Higuain, signed from Napoli for an Italian record 90m euros, had failed to find the net in Juve's past two outings - a scoreless draw with Sevilla in the Champions League and a 1-0 defeat to Inter Milan on Sunday.

But the Argentine striker quashed any emerging doubts about his talents with his fourth goal of the season just after the half hour after defender Daniele Rugani had given Juve a 14th minute lead.

Juventus were dominant throughout and their visitors from Sardinia were lucky not to escape with more punishment.

Dani Alves, signed during the close season from Barcelona, hit Juve's third minutes before the interval and Mario Lemina saw his drive turned into the Cagliari net by Luca Ceppitelli in the closing minutes.

After Napoli's scoreless draw at Genoa, where Pepe Reina had to produce several key saves for the visitors late on, Juventus return to the top of the pile.

Massimiliano Allegri's men lead Napoli by one point, with Roma moving up to third after a 4-0 rout of league newcomers Crotone which included Edin Dzeko's first brace of the season.

Roma coach Luciano Spalletti was under the cosh after Sunday's 1-0 defeat to Fiorentina, but the Giallorossi handler's nerves were quickly allayed.

Stephen El Shaarawy fired Roma into a 25th minute lead when he pounced on a cutback on the left side of the area to fire a deflected shot past Alex Cordaz. 

Egyptian international Mohamed Salah doubled Roma's lead on 37 minutes when he chipped Cordaz from a similar position.

And Dzeko put the result beyond all reasonable when he lobbed the Italian 'keeper after running on to Francesco Totti's chip three minutes after the restart.

Minutes later Dzeko had his fourth of the season, and first brace of the campaign, after slipping past his marker to sidefoot Salah's unselfish cross past Cordaz. 

Crotone should have reduced arrears seconds later, but Roma 'keeper Wojciech Szczesny got down low to his left to save Raffaele Palladino's spot kick on the hour.

A precious 2-1 win over Europa League debutants Sassuolo kept Chievo among the top four but the Verona-based side are only ahead of Inter Milan on goals difference.

Inter eclipsed their poor start to the season under new coach Frank De Boer with an emphatic 1-0 win over Juventus on Sunday when Argentine striker Mauro Icardi hit the winner.

Days before he is expected to sign a new contract extension with the Nerazzurri, Icardi hit a brace in a 2-0 win at Empoli to take his tally for the season to six in five games and go top of the league scoring charts.

Icardi broke the deadlock on 10 minutes when he was left unmarked to dive low and head Antonio Candreva's cross past Lukasz Skorupski.

Icardi took his second with consummate ease, the Argentine running on to Joao Mario's through ball to slot past the Polish 'keeper at his near post just seven minutes later.

Elsewhere, Palermo had Ilija Nestorovski's 89th minute winner to thank for a precious 1-0 win at Atalanta, Fiorentina held Udinese to a 2-2 draw in Udine and nine-man Torino did well to secure a scoreless draw at Pescara.