AC Milan cut Inter Milan's lead at the top of Serie A to three points despite being held to a 2-2 draw at Torino.
Having gone behind to Roberto Stellone's 25th-minute strike, Carlo Ancelotti's side roared back and equalised through Alexandre Pato before Ronaldinho put the visitors ahead 10 minutes before half-time.
But a 77th-minute penalty from Alessandro Rosina denied the Rossoneri and handed Torino a draw which moves them a point clear of the relegation zone.
Napoli missed the chance to move into third after relinquishing their 100% home record at the San Paolo as an injury-time strike from Daniele Conti handed Cagliari a point.
It seemed to be going to form when Marek Hamsik put Napoli ahead after nine minutes but Diego Lopez levelled matters 10 minutes into the second half.
Ezequiel Lavezzi looked to have won it for the hosts when he struck six minutes from time but Conti equalised again at the death.
Ousmane Dabo scored a late goal as Lazio claimed a fortunate 1-1 draw with Genoa.
The former Manchester City player scored with 10 minutes to go after Diego Milito had put the visitors ahead.
Milito also had a goal incorrectly ruled out for offside and missed a penalty.
Mirko Vucinic was on target against his former team as Roma continued their recent improvement with a comfortable 3-0 win at Lecce.
Juan and Francesco Totti also scored as Roma built impressively on last week's derby defeat of Lazio, shattering the southerners' unbeaten home record.
Strike duo Claudio Bellucci and Antonio Cassano were on song as Sampdoria demolished Catania 3-0 to move further clear of the drop zone.
Bellucci, who used to play alongside Catania coach Walter Zenga in his first spell with Sampdoria, opened the scoring in the sixth minute.
Cassano added the second just after an hour and gave a more realistic look to the scoreline with a third in stoppage time.
Reggina continued their revival with a 3-1 victory over Atalanta.
Last weekend's 1-0 win over Udinese lifted the Amaranto off the foot of the table and they continued the upward trend with goals from Francesco Cozza and Bernardo Corradi in the opening 25 minutes.
Corradi sealed all three points with his second 11 minutes from time, before Cristiano Doni headed in a late consolation goal for the visitors.
Late penalties from Daniele Galloppa and Massimo Maccarone handed Siena a 2-0 victory at Chievo while a last-minute goal from Davide Succi handed Palermo a 1-1 draw against Bologna, who had earlier gone ahead through Marco Di Vaio.
Inter beat arch-rivals Juventus 1-0 on Saturday night.
After a ferocious first half, it took a 72nd-minute goal from Sulley Muntari to decide the game in the home side's favour.
Fiorentina produced a fantastic second-half comeback to beat Udinese 4-2 in an action-packed encounter at the Stadio Artemio Franchi.
The Bianconeri had taken a first-half lead through Antonio Floro Flores before Adrian Mutu levelled from the penalty spot early in the second period.
Riccardo Montolivo scored a brace before Alberto Gilardino made it 4-1 for the hosts. Antonio Di Natale pulled a late goal back from the penalty spot after Gianluca Comotto was dismissed.
