Napoli and Juventus remain locked together at the top of Serie A after winning their respective games on Sunday.
Napoli's was a hard-earned 2-1 triumph over Udinese at the Stadio San Paolo, with Marek Hamsik and Goran Pandev scoring either side of Giampiero Pinzi's equaliser for a Udinese side who continue to struggle.
Juve also had to do it tough, emerging from their clash at Siena with a win by the same scoreline.
Andrea Pirlo gave the Bianconeri the lead with an early free-kick, but the Old Lady were pegged back in first-half stoppage time by Emanuele Calaio's equaliser.
However, the visitors refused to settle for the draw and secured all three points five minutes from time when Claudio Marchisio volleyed home the winner.
Away from the leaders, Walter Samuel lit the touchpaper on the fieriest of Milan derbies, and stood back as 10-man Inter Milan rode out a controversial 90 minutes to heap further woe on Massimiliano Allegri with a 1-0 win.
All eyes had been on Inter striker Antonio Cassano, who had switched sides at the San Siro before the start of the Serie A season, but it was veteran centre-back Samuel who won the game for the Nerazzurri with a headed goal in the third minute.
Riccardo Montolivo was denied the chance to restore parity courtesy of a controversial call from referee Paolo Valeri, but AC Milan only had themselves to blame for failing to capitalise when Yuto Nagatomo's dismissal put Inter on the back foot for much of the second half.
Roma bounced back from their 4-1 defeat to Juventus a week ago to pick up all three points at the expense of Atalanta in a 2-0 win at the Stadio Olimpico.
Erik Lamela and Michael Bradley got the goals as Zdenek Zeman's side responded to recent criticism to edge up the Serie A table.
Elsewhere, Stevan Jovetic's early goal earned Fiorentina a 1-0 victory at home to Bologna, while Catania made it another trip to Sicily to forget for 10-man Parma as goals from Alejandro Gomez and Gonzalo Bergessio sealed a comfortable 2-0 win.
Pescara's mini-revival was ended in emphatic fashion as Lazio ran out comfortable winners 3-0, with a Hernanes free-kick and a brace by Miroslav Klose sorting things out inside 35 minutes.
Finally, Ivo Pulga started started life in the Cagliari hot seat with a win - and a first of the season at that - as Nene's goal 16 minutes from time saw off Torino.
On Saturday, David Di Michele's late strike helped Eugenio Corini make a winning start to life as coach of Chievo, who ended a five-game losing streak with a 2-1 success over Sampdoria at the Stadio Bentegodi.
Corini replaced Domenico di Carlo earlier this week, although it seemed like he may have to settle for a point in his first match when Samp midfielder Enzo Maresca scored direct from a free-kick after Cyril Thereau had given the Flying Donkeys a half-time lead.
But Di Michele tried his luck from distance and Sampdoria keeper Sergio Romero made a hash of his attempt to keep it out, gifting Chievo victory three minutes from time.
Gian Piero Gasperini made an emotional return to the Stadio Luigi Ferraris in Palermo's 1-1 draw at former club Genoa.
Gasperini had led Il Grifone into the Europa League in 2009, spending over four years at the club, and he looked to be on course for three points when Luigi Giorgi put Palermo ahead in the 14th minute.
Marco Borriello rescued a share of the spoils for Genoa seven minutes after the interval.