Juventus's 15-game winning run in Serie A came to an end on Friday night as they were held to a 0-0 draw at Bologna.
The Old Lady, who have failed to win in the Italian top flight for the first time since October, entered the match knowing that three points against the league's 10th-placed team would see them open up a four-point gap on second-placed Napoli.
A stern defensive performance from Roberto Donadoni's Bologna allowed the hosts to gain a point, however, against a Juventus team that only really had two serious chances throughout the 90 minutes.
Both of those came for Paul Pogba, but the Frenchman fired narrowly wide of the post from a Stephan Lichtsteiner cross in the 53rd minute, before seeing his dangerous low cross hacked clear by Antonio Mirante in the 89th minute.
Bologna's best chance of the match came for Mattia Destro in the first period, but the attacker's stinging drive was kept out by Gianluigi Buffon, who was rarely troubled throughout the 90 minutes.
Napoli will have the chance to return to the top of Serie A when they welcome AC Milan on Monday night.
