Inter Milan returned to the top of Serie A with a comfortable 4-0 home win over Frosinone on Sunday evening.
Emanuele Giaccherini's second goal in as many games extended Hellas Verona's winless streak in Serie A as they went down 2-0 to Bologna.
Fiorentina claimed a handsome 4-1 victory over Frosinone at the Stadio Artemio Franchi to move top of Serie A.
Gianluigi Donnarumma made history on Sunday by becoming the youngest goalkeeper ever to start a match in Serie A.
Gonzalo Higuain's goal saw Napoli beat Serie A leaders Fiorentina 2-1, while Lazio were beaten 2-1 by Sassuolo.
Carpi secured their first ever Serie A victory with a 2-1 defeat of third-placed Torino in Beppe Sannino's first game as manager.
Fiorentina ended Inter Milan's perfect record in stunning style while AC Milan were beaten and Lazio moved up to fourth.
Juventus could only draw 1-1 at home to Frosinone in Serie A on Wednesday, as leaders Inter Milan beat Hellas Verona 1-0.
A Gonzalo Higuain-inspired Napoli ran riot against Lazio while there were also wins for Inter Milan and Fiorentina.
Mario Balotelli hit the post as AC Milan lost 1-0 to leaders Inter in Serie A on Sunday, while Torino remain unbeaten.
Serie A champions Juventus saw their 47-match unbeaten home league record come to an end against Udinese.
Differing fortunes for Rome rivals as Lazio beat Bologna and Roma are held by Verona on Serie A's opening day.
Luca Toni expressed his delight after signing a new contract with Serie A side Hellas Verona.
Juanito denied champions Juventus a winning end to the Serie A season as they played out a 2-2 draw against Verona.
Fiorentina qualified for the Europa League while Stephan El Shaarawy scored his first goal in seven months for AC Milan.
Liverpool give U21s more game time than Premier League rivals but top flight lags behind Europe.
Veteran Verona hitman Luca Toni is well-placed to finish the Serie A season as top scorer after a brace against Parma.
Hellas Verona rallied from behind to beat Empoli 2-1 and enhance their chances of finishing in the top half.
Napoli's hopes of Champions League qualification suffered a setback as they drew 2-2 at rock-bottom Parma in Serie A on Sunday.
Chievo and Hellas Verona drew 2-2 in Sunday's derby with all of the goals scored in a thrilling first half.