A late goal from Dusan Vlahovic has rescued a 1-1 draw for Juventus at home to Bologna in Serie A.
The Italian giants were booed off the field at halftime on Sunday after Lewis Ferguson had given visitors Bologna the lead, before Vlahovic headed in the equaliser with 10 minutes remaining.
Defending champions Napoli made it two wins out of two by beating 10-man Sassuolo 2-0, while Lazio surprisingly lost 1-0 at home to newly promoted Genoa.
The visitors took the lead in the 24th minute when Joshua Zirkzee drew two defenders before knocking the ball forward to Ferguson, who fired into the bottom corner.
Juventus responded to the jeers with more impetus after the break and thought they had taken the lead on 52 minutes but Vlahovic's effort was ruled out for offside.
The home side got their breakthrough 10 minutes from time, when a cross from Samuel Iling-Junior was headed home by Serbia international Vlahovic.
Napoli winger Khvicha Kvaratskhelia took just three minutes to make an impact in his first appearance of the season for the champions.
On as a 61st-minute substitute, the man nicknamed 'Kvaradona' slipped through a delightful pass to put Giovanni Di Lorenzo through for a simple finish and Napoli's second goal.
Napoli had taken the lead in the 16th minute when Victor Osimhen converted a penalty.
Sassuolo's chances of getting something from the match diminished six minutes into the second half when midfielder Maxime Lopez was shown a red card for repeated dissent.
Mateo Retegui headed in his first Serie A goal to give Genoa a huge win at the Stadio Olimpico against last season's runners-up Lazio, who have begun the campaign with back-to-back defeats.
Lecce - last week's conquerors of Lazio - followed that up by coming back from two goals down to draw 2-2 at Fiorentina.