It was another busy schedule for the Serie A this weekend, with two games on Saturday and six games on Sunday, with Fiorentina causing the biggest shock.
Paulo Sousa's men travelled to the San Siro on Sunday evening with Roberto Mancini's Inter Milan unbeaten in their first five games, winning them all.
However, they would taste their first defeat this weekend in emphatic fashion, but first of all, let's take a look into the Saturday matches.
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On Saturday, there were only two matches as AS Roma hosted Carpi and Napoli took on Juventus.
It was another weekend to forget for The Old Lady as they fell to a 2-1 away defeat to Napoli thanks to goals from Lorenzo Insigne and Gonzalo Higuain.
The 2-1 defeat leaves Juve 15th in the table, with just five points from their first six games. For Napoli, they are now ninth in the league with nine points from six games.
There were no shocks for Roma as they thumped newly-promoted Carpi 5-1 at home which sees them go sixth in the table with 11 points.
Kostas Manolas, Miralem Pjanic, Gervinho, Mohamed Salah and Lucas Digne with the goals for Rudi Garcia's men.
Carpi remain 19th without a league win so far.
The Sunday schedule was the highlight with Inter Milan hosting Fiorentina and it was a game full of shocks.
Inter went into it with five wins from five, but a Nikola Kalinić hat-trick gave the visitors an emphatic 4-1 victory.
Fiorentina's win leap-frogged them over Inter and top of the Serie A for the first time in over a decade.
The two sides are level of points, but Fiorentina now have a better goal difference after the three-goal victory.
Torino continued their great start to the season with a 2-1 home win against Palermo, keeping them third in the table.
Another shock is coming in the shape of Sassuolo as they are fourth in the table after a 1-1 draw with Chievo, who drop to seventh.
Elsewhere there were wins for Genoa over AC Milan, Udinese over Bologna and Lazio over Verona.
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