Sami Khedira scored a first career hat-trick as 10-man Juventus recovered to trounce Udinese 6-2 at the Dacia Arena.
Mario Balotelli gave Nice an early lead, but it was not enough to prevent Lazio from emerging 3-1 winners at the Stade de Nice on Thursday.
Ciro Immobile scored twice in a 2-1 Lazio victory in Turin as Paulo Dybala failed to save Juventus from their first home defeat in Serie A in more than two years.
Roma won 2-0 away to AC Milan on Sunday, while leaders Napoli crushed Cagliari 3-0 and Juventus drew 2-2 at Atalanta.
Former QPR midfielder Adel Taarabt received a straight red card as nine-man Genoa lost 1-0 to Inter Milan.
Andre Silva scored a hat-trick as AC Milan cruised to an emphatic 5-1 win away to Austria Vienna in Europa League Group D.
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