Fiorentina fell to a 2-0 defeat at home to promoted Como on Sunday with midfielders Assane Diao and Nico Paz scoring for the visitors.
The Florence side are sixth in Serie A with 42 points from 25 games ahead of the rest of the weekend's fixtures, while Como are 13th with 25 points.
Udinese, who are 10th, thumped relegation-threatened Empoli 3-0 at home, while bottom side Monza and 15th-placed Lecce battled out a goalless draw.
Champions Inter have the chance to go top later on Sunday by winning at Juventus after leaders Napoli were held 2-2 at Lazio on Saturday..
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