Antonio Di Natale compounded AC Milan's woes to earn Udinese a crucial win at the Stadio Friuli, while Catania and Cagliari played to a 1-1 draw.
Carlos Tevez's derby heroics feature alongside goalscoring feats from Daniel Sturridge and Marcin Robak, a sensational strike by Hakan Calhanoglu and the end of runs in Portugal and Scotland.
Fiorentina have won their way into the Coppa Italia final and a meeting with either Roma or Napoli after overturning a first-leg deficit in a tense return leg.
Napoli defeated AC Milan 3-1 thanks to a Gonzalo Higuain brace, while Fiorentina and Udinese both won their home matches in Serie A.
French defender Adil Rami scored his maiden goal for AC Milan but Clarence Seedorf's side were left frustrated by Torino in a 1-1 draw, while Fiorentina lost their first match of the year away to Cagliari.
Udinese striker Antonio Di Natale said he will retire at the end of the season, bringing an end to a career which has seen him top Serie A's scoring charts on two occasions.