Juventus blew the chance to move eight points clear on top of Serie A by being held to a 1-1 draw by a resilient Genoa side on Saturday.
Despite dominating possession and territory in front of their home fans in the first half, the league leaders rarely tested Sebastien Frey in the Genoa goal.
The hosts belatedly made the breakthrough early in the second half through Fabio Quagliarella.
However, veteran striker Marco Borriello came off the bench to level matters on 68 minutes and the visitors held on to claim a point that boosts their bid to avoid relegation.
Second-placed Napoli can now close to within three points of Juventus should they prevail in Parma on Sunday.
In the day's other result, Chievo pulled off a shock 1-0 win at third-placed Lazio with Alberto Paloschi scoring the game's only goal in the 61st minute.
Despite dominating the majority of the game, Lazio miss a chance to go second in the standings and put pressure on Juventus, while Chievo are now within touching distance of the top-half.