Juventus' domestic problems deepened as it was held at relegation-threatened Venezia to 1-1 in Serie A on Saturday.
Mattia Aramu scored in the second half for Venezia to cancel out Álvaro Morata's opener.
Juventus qualified for the round of 16 of the Champions League as a group winner midweek but it has been a different story in Serie A. Saturday's draw left Juventus 10 points below league leader AC Milan, which visited lowly Udinese late.
Moreover, the Bianconeri were six points below fourth-placed Atalanta, which had a game in hand.
Venezia inched six points above the drop zone after ending a run of three straight losses.
Juventus started well in Venice but took an early blow when forward Paulo Dybala limped off injured in the 12th minute.
It took a deserved lead in the 32nd minute when Luca Pellegrini crossed in from the left for Morata to flick in at the near post. It was the young left back's first assist for Juventus.
However, Juventus sat back too much and Venezia leveled 10 minutes into the second half as the Bianconeri failed to clear danger on the edge of the area and the ball came through to Aramu, who fired into the bottom left corner.
Venezia almost turned the match around completely five minutes later but Thomas Henry's effort went just past the left post.
Venezia goalkeeper Sergio Romero performed heroics moments later with a fantastic save to keep out an attempt by Federico Bernardeschi from close range.
