ROME (AFP) AC Milan went top of Serie A on Wednesday with a 3-1 victory over Palermo at the San Siro as previous leaders Lazio crashed 1-0 at newly-promoted Cesena. Pato opened the scoring for Milan before Armin Bacinovic equalised for the Sicilians but a Zlatan Ibrahimovic penalty and late Robinho third gave the rossoneri the championship lead. The crucial moment in the game was the 77th minute penalty award when Massimo Ambrosini went down a little easily in the box. Milan coach Massimiliano Allegri admitted his team were lucky to get that decision. Seeing it again on TV it seems that Ambrosini let himself fall down a bit but I have to say that in real time I thought it was a penalty, he said before explaining that he thought there could have been up to two penalties for each team. The referee called them this way so this time things have gone well for us but on other occasions we were penalised a little bit. There were a couple of early half chances but Palermos Mauricio Pinilla swiped at thin air with the goal at his mercy when well placed while up the other end Ibrahimovic dragged a shot wide. Milan took the lead on 19 minutes in somewhat straight-forward fashion as Pato rose to power home a header from Massimo Ambrosinis corner following some feeble marking from Bacinovic. Palermo were marginally the more dangerous despite an under par performance from playmaker Javier Pastore but Pinillas firm header on 29 minutes from Mattia Cassanis cross was straight at Christian Abbiati while the goalkeeper had little trouble dealing with Josip Ilicics effort from distance on 44 minutes. Abbiati was kept busy without being overly stretched and on 48 minutes he tipped Cesare Bovos powerful curling free-kick over the bar. The deserved equaliser came on 63 minutes. Bacinovic lined up from fully 25 yards out but his shot lacked venom. Even so, Thiago Silva slipped and missed the ball while Abbiati seemed to have assumed his defence would deal with it and he was a static spectator as the ball crept into the corner of the net. Milan almost went back in front as Clarence Seedorf fired against the post and then headed the rebound just wide. But then Ambrosini went down a little easily under a challenge from goalkeeper Salvatore Sirigu and Ibrahimovic despatched the penalty with aplomb. Milan were then able to hit Palermo on the break with Ibrahimovic teeing up substitute Robinho to kill the game seven minutes from time. Lazio lost the lead after suffering a second successive loss after Sundays 2-0 derby defeat to Roma. Marco Parolo scored the only goal of the game five minutes from time as the biancoceleste fell to second. Champions Inter Milan dropped to fourth as they drew for the fifth time in their 11 games as Lecce came from behind to snatch a point. Diego Milito scored just his third goal of the season on 76 minutes only for Uruguayan Ruben Oliver, back from a suspension, to cancel that out three minutes later. Napoli, who finished the game carrying two injured players, moved up to third as Argentina forward Ezequiel Lavezzi snatched a winner deep into injury time as they won 1-0 at Cagliari. We did really not to get disorganised at the end. If we keep playing like this we can get some important results, enthused Lavezzi. Juventus dropped to fifth with a 1-1 draw at Brescia, whose Alessandro Diamanti pulled the scores level after Fabio Quagliarellas opener. Despite a poor start to the season, sixth-placed Roma are just five points off top now following a third win in a row. Brazilian Simplicio opened the scoring in their 3-1 win over Fiorentina at the Stadio Olimpico with Marco Borriello doubling it. Alberto Gilardino pulled one back but Simone Perrotta made the points safe.