Juventus' hopes of Champions League qualification were hit by a 3-0 defeat at Udinese in this evening's game.
Alexis Sanchez opened the scoring after nine minutes and Simone Pepe and Antonio Di Natale netted second-half strikes as Udinese triumphed to inflict Juve's 12th loss this season.
Palermo, who currently occupy the fourth Champions League spot, were also beaten today, however.
Catania earned a 2-0 win over Palermo, with Maxi Lopez on target after 14 and 32 minutes.
The result left Palermo level on points with Sampdoria, but with a superior goal difference, while Napoli are two points further back and Juve are a point further adrift.