Of the Scudetto contenders, only Inter won the opening game with last-gasp Stevan Jovetic, as 10-man Milan fell to Fiorentina and Napoli lost at Sassuolo.
Click here for all the individual match reports from Serie A Week 1.
Reigning Champions Juventus also suffered a shock home defeat to Udinese, while Roma were held at Verona on Saturday.
Of the Scudetto contenders, only Inter won the opening game with last-gasp Stevan Jovetic, as 10-man Milan fell to Fiorentina and Napoli lost at Sassuolo.
Click here for all the individual match reports from Serie A Week 1.
Reigning Champions Juventus also suffered a shock home defeat to Udinese, while Roma were held at Verona on Saturday.
Sampdoria are top of the table thanks to their 5-2 demolition of Serie A new boys Carpi.
Frosinone fumbled a lead, giving Torino the 2-1 victory, while Chievo fought back for success at Empoli.
Palermo left it to the last minute for a 1-0 win over Genoa after hitting the woodwork twice.