There was more misery for Juventus as it lost at home to Atalanta 1-0 and was roundly jeered by its fans.
That loss came four days after losing 4-0 at Chelsea in the Champions League.
Atalanta hadn’t done much better, fumbling a lead twice in a 3-3 draw at Young Boys.
Duvan Zapata scored the only goal in Turin, with a powerful effort in the 28th minute that went in off the underside of the crossbar.
Juventus almost leveled in the second half but Adrien Rabiot’s effort was fingertipped wide by Juan Musso.
Juventus players Federico Chiesa and Weston McKennie went off injured during the match, to cap a miserable night for the Bianconeri.
Juventus suffered another setback as they lost 1-0 at home to Atalanta, with a fifth defeat in 14 Serie A games leaving them in eighth place. The hosts struggled to create any openings of note in the first half and they left Duván Zapata free to fire home in the 28th minute.
Juve failed to offer much of a response, with Paulo Dybala’s late free-kick that clipped the crossbar as close as they came to a leveller.
Atalanta held on in relative comfort and stretched their unbeaten run to eight games in all competitions to stay fourth on 28 points, four points behind the leaders, Napoli, and seven points ahead of Juve, who are 11 points off the pace. The victory was Atalanta’s first at Juventus since 1989.
“Atalanta did little in front of goal. The only shot was made by Zapata on our mistake,” the Juventus coach, Massimiliano Allegri, said. “When you don’t score things get very nervous. The only thing that we have to do is work, as we have always done, and try to win a game.”