Khouma Babacar's injury-time strike saw 10-man Fiorentina climb into third place in Serie A as they claimed a 2-1 victory over nine-man Inter in an ill-tempered contest at the Stadio Artemio Franchi.
Marcelo Brozovic finished off a sweet passing move to give Roberto Mancini's side a first-half lead before Borja Valero headed in Josip Ilicic's cross to equalise for the hosts.
In an eventful end to the game, Galatasaray loanee Alex Telles was shown a second yellow card for Inter before Babacar came off the bench to pounce on fellow substitute Mauro Zarate's saved effort to score the winner.
Zarate was given a straight red moments later after an altercation with Jeison Murillo and referee Paolo Silvio Mazzoleni then gave Inter Milan midfielder Geoffrey Kondogbia his marching orders in the closing stages for dissent.
Goals from Carlos Bacca and Keisuke Honda fired Milan to a 2-1 win over Genoa. Strikes in each half ensured the hosts kept the pressure on Serie A's top five and left Genoa looking over their shoulders at the relegation zone.
Alessio Cerci hit a consolation for Genoa but it was too late to deny Milan the victory.
Ciro Immobile scored his first brace for Torino as they beat Palermo 3-1 to move away from the Serie A relegation zone.
Alberto Gilardino took just two minutes to put Palermo ahead but Torino took over from then on. Immobile calmly slotted home from the spot after Michel Morganella fouled the forward.
Giancarlo Gonzalez then scored an own goal to put Torino 2-1 up on the half hour and Immobile secured the win with a rising left-footed shot after the break.
The win moved Torino nine points above the drop zone while Palermo are now just four points above the bottom three.
Mattia Destro's late winner helped Bologna to a 1-0 victory over hapless Udinese at the Stadio Friuli.
The Rossoblu had not won at Udinese since 2005 and had lost the reverse fixture on match day six but the former Roma striker settled the score with a beautiful effort.
Stefano Colantuono's side are now winless in their last seven Serie A games.
Sampdoria's winless run stretched to seven matches after a goalless draw at home to Atalanta.
The visitors made the brighter start and former Italy forward Alessandro Diamanti fired an early effort over the crossbar, before Mauricio Pinilla headed narrowly wide.
The hosts almost took the lead shortly after the break but Dodo's header from Mattia Cassani's cross was well saved by Marco Sportiello.
Andrea Ranocchia had a late chance to win it for Samp but skewed his shot high and wide as they remain 16th while Edy Reja's side stay in 13th.