Elsewhere Napoli resisted a fightback from Lazio, who also had a player sent off, to prevail 4-2 thanks to an injury-time goal from Gonzalo Higuain which gave the Argentine striker a hat-trick yesterday.
In yesterday's late match captain Riccardo Montolivo struck a first-half missile to earn AC Milan a 1-0 win over basement side Catania.
Frustrated throughout by Maurizio Pellegrino's ill-disciplined side, Milan missed a series of half-chances before Andres Rinaudo saw red in the 78th minute for a rash challenge on Philippe Mexes, his second bookable offence coming after several previous warnings.
Leaders Juventus are not in action until today when they travel to Udinese looking to restore their eight-point lead on second-placed Roma, whose 3-1 win at home to Atalanta on Saturday reduced their arrears to five points.
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Napoli, in third, are 12 points adrift of Roma and still nine ahead of fourth-placed Fiorentina.
Higuain, who had not scored since March 17 and had recently been substituted several times by coach Rafael Benitez, told Mediaset: "I'm happy for me and for Napoli, especially after our defeat to Parma (last week).
With all three Champions League spots virtually accounted for, the battle rages for places in Europe's second-tier club competition.
Fiorentina overcame conceding an early goal to hit back through Juan Cuadrado, Alberto Aquilani and Borja Valero before Verona midfielder Marco Donadel saw red for hauling down Cuadrado.