Three and easy for Inter Milan
Inter Milan remained in touch with the title-chasing pack by claiming a comfortable 3-0 victory at Udinese on Sunday.
The Bianconeri were unbeaten at the Stadio Friuli for 13 months before losing to leaders Roma last weekend, but they suffered a second home defeat in as many games thanks to Walter Mazzarri's Inter side.
After Rodrigo Palacio opened the scoring with a header in the 25th minute, Andrea Ranocchia hit Udinese while they were still down with a well-taken volley.
Ricky Alvarez rounded off Inter's win with a third goal
Genoa ended Lazio's unbeaten run at the Stadio Olimpico with a 2-0 triumph.
Juraj Kucka put the visitors ahead on the hour mark before Alberto Gilardino made netted from the penalty spot following a handball from Lazio defender Michael Ciani.
Gaetano Berardi scored a second-half hat-trick as Sassuolo fought back to beat 10-man Sampdoria 4-3 and clinch only their second win of the Serie A season.
What would end as a scintillating victory for the visitors to the Stadio Luigi Ferraris sparked into life when Samp striker Nicola Pozzi opened the scoring in the first half.
Sassuolo, who earned a first ever away win in the top flight, hit back after the break with Berardi equalising before turning the game around from the penalty spot after Andrea Costa saw red.
Antonio Floro Flores extended the visitors' lead, but goals from Eder and Lorenzo De Silvestri set Samp on course for a share of the points.
They took nothing from the game, though, as Berardi settled the end-to-end encounter with another spot-kick right at the end.
Hellas Verona continued their impressive home form with a 2-1 victory over Cagliari.
Luca Toni put Hellas on their way in the eighth minute before team-mate Bosko Jankovic made it 2-0 before the hour mark.
Daniele Conti reduced the deficit with seconds remaining.
Livorno provided some relief to coach Davide Nicola with a 1-0 win over 10-man Atalanta.
Paulinho's goal in the 11th minute was enough to earn the Amaranto all three points and ease some of the pressure on Nicola following the team's poor recent run.
On Saturday, Napoli claimed a 2-1 win over Catania.
Jose Callejon opened the scoring after 15 minutes and the lead was doubled five minutes later as Marek Hamsik found the target.
Lucas Castro reduced the deficit in the 25th minute but Napoli dominated the remainder of the game and the visitors were lucky to lose by just a single goal.
Paul Pogba scored the only goal at Parma to ensure Juventus maintained their winning run ahead of a crucial Champions League tie against Real Madrid in midweek.
Pogba decided a hard-fought encounter 13 minutes from the end when he was quickest to the ball after Fabio Quagliarella's long-range effort crashed back off the crossbar.
The Frenchman still needed to keep his cool to beat Parma goalkeeper Antonio Mirante and secure a third win on the spin since Juve were beaten at the Bernabeu a fortnight ago.
Fiorentina bagged a 2-0 win over AC Milan.
Juan Vargas gave the Viola the lead in the 27th minute with a deflected free-kick before Borja Valero wrapped up victory midway through the second half with a tap in.