Two goals in three second-half minutes helped Inter Milan to a 2-0 victory at home to Benevento.
Alex Sandro scored as Juventus bounced back from their Champions League collapse against Spurs with a 1-0 victory at Torino.
Yann Karamoh's first goal for Inter Milan settled their fraught 2-1 victory over nine-man Bologna at the San Siro on Sunday.
Gonzalo Higuain scored a hat-trick as Juventus thrashed Sassuolo 7-0 to keep the pressure on Napoli in the Serie A title battle.
Dries Mertens scored twice as Napoli beat Bologna 3-1 to reclaim top spot in the Serie A table from reigning champions Juventus.
Napoli moved four points clear at the Serie A summit on Sunday with a 1-0 victory over Atalanta in Bergamo.
Fernando Bernardeschi scored the only goal as Juventus kept Serie A leaders Napoli in their sights with a 1-0 win over Cagliari.
Roma's bid to break into Serie A's top three was thwarted in part by two video assistant referee decisions as they drew 1-1 against Sassuolo.
Gennaro Gattuso recorded his first win as AC Milan head coach with a 2-1 Serie A victory at home to Bologna.
Mauro Icardi scored twice as Inter Milan moved to the top of Serie A with a hard-fought 3-1 victory against a resurgent Cagliari.
Second-half goals from Gonzalo Higuain and Juan Cuadrado meant Juventus came from behind to inflict a 12th straight Serie A defeat on struggling Benevento.
Gaston Ramirez and Fabio Quagliarella scored as Sampdoria secured a 2-0 win at Genoa in the Derby della Lanterna on Saturday.
Gonzalo Higuain fired a brilliant double as Juventus won 2-0 at AC Milan to draw level on points with Napoli at the top of Serie A.
AC Milan and Juventus swept to comfortable victories on a night in Serie A that will be remembered for off-pitch reasons.
Sami Khedira scored a first career hat-trick as 10-man Juventus recovered to trounce Udinese 6-2 at the Dacia Arena.
Sampdoria came from behind to record a 3-1 victory over Atalanta at the Stadio Luigi Ferraris on Sunday.
Udinese ended Sampdoria's unbeaten Serie A start with a 4-0 victory at Friuli, where midfielder Edgar Barreto was sent off.
Former QPR midfielder Adel Taarabt received a straight red card as nine-man Genoa lost 1-0 to Inter Milan.
Inter Milan's perfect start to the new Serie A season ended on Tuesday as they were held to a 1-1 draw at Bologna.
Inter Milan scored two late goals to maintain their 100 per cent start to the Serie A campaign with a 2-0 triumph at Crotone.
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