Inter Milan are now 11 points off the pace with only eight matches of the season remaining and just one point ahead of fourth-placed Atalanta.
- Man Utd
Juventus beat Bologna 2-0 win to move four points clear of Lazio on top of the Serie A table.
Juventus are now four points clear of second-placed Inter Milan, who travel to Sassuolo on Sunday.
Alvaro Morata, Sami Khedira and Paulo Dybala scored a goal each to help Juventus beat Bologna 3-1.
Arturo Vidal and Giorgio Chiellini netted a goal each as Juventus beat Bologna 2-0.
Palermo almost restored their lead three minutes from halftime when Miccoli curled a right-footed shot that hit the post.
Defending champion Napoli's miserable week continued as it crashed out of the Italian Cup on Wednesday after a 2-1 defeat at home to Bologna.
Former Manchester United forward Paul Pogba struck in injury time to hand Juventus a 2-1 win over Bologna on Wednesday as the champions opened up a six-point gap on Napoli.
Champions Juventus will aim to make it 49 matches unbeaten when they host Bologna Wednesday, while followers of Serie A will hope there is no repeat of the refereeing controversies which marred some weekend matches.
Francesco Totti could be a doubt for Roma's home fixture against Bologna at the Olympic Stadium this Sunday after suffering an ankle knock in training.
Juventus missed the chance to draw level with AC Milan on Wednesday, posting its 13th draw of the Serie A season with a 1-1 result against Bologna.
Claudio Ranieri's job was hanging in the balance on Friday after a disastrous defensive performance saw his Inter Milan side lose 3-0 at home to struggling Bologna in Serie A.
League leaders Juventus's match at Bologna on Sunday has been called off due to heavy snow while Fiorentina's trip to Parma has also fallen victim to the weather.
Udinese went top of Serie A with a 2-1 win at home to Chievo as AC Milan were held to a 2-2 draw at Bologna on Sunday.
Juventus coach Antonio Conte said Wednesday he will be taking the Italian Cup seriously ahead of Thursday's last 16 clash against Bologna.
Marco Parolo scored seven minutes from time to give rock-bottom Cesena their first victory of the season in a 1-0 success at fellow strugglers Bologna.
Kobe Bryant's management and Virtus Bologna have released a joint statement saying they are working "very intensely" to bring the Los Angeles Lakers star to Italy during the NBA lockout.
The president of Virtus Bologna is optimistic Kobe Bryant will sign with the Italian club during the NBA lockout despite scheduling problems posed by other teams.