Christian Poulsen scored in injury time to give 10-man Juventus a 2-1 win at Catania today.
Vincenzo Iaquinta headed Juve in front on 11 minutes but was booked for removing his shirt in celebration and was shown a second yellow and sent off almost immediately for a foul.
Takayuki Morimoto brought the hosts level but Juve climbed back up to second, seven points behind leaders Inter, when Danish midfielder Poulsen netted after a late defensive error.
Fiorentina moved up into fourth after Alberto Gilardino grabbed a late winner in a 1-0 victory over Lazio while AS Roma are joint-fifth with Genoa after beating their rivals 3-0.