Udinese's unbeaten start to the Serie A season came to an end Wednesday when it slumped to a 2-0 defeat at Napoli. First-half goals from Ezequiel Lavezzi and Christian Maggio sunk Udinese which went into the midweek games top but is now in second place. It is one point behind undefeated leader Juventus, 2-1 winner at home to Fiorentina Tuesday. Third-placed Lazio, on the same total of 15 points as Udinese, missed the chance to climb to the summit when they were held to a 1-1 home draw by Catania after Miroslav Klose had put the hosts ahead in the 17th minute. Midfielder Antonio Nocerino scored a hat-trick in AC Milan's 4-1 win over Parma, while struggling Inter Milan drew 1-1 at Atalanta. Milan is fifth, equal on 14 points with Napoli. Napoli has been spectacularly erratic this season, enjoying convincing wins against Milan and Inter and losing at home to lowly Parma. Udinese, missing top-scorer Antonio Di Natale through injury, were unlucky to face Walter Mazzarri's team on one of their good days and were on the back foot from the start. Marek Hamsik had a goal disallowed in the 16th minute but Napoli only had to wait another four minutes to take the lead. Edinson Cavani flicked the ball over Lazio's back line and found Lavezzi, who brilliantly hooked the ball into the net on the turn. The home side wrapped the game up before halftime when Blerim Dzemaili's cross was headed in by Maggio at the far post. AS Roma is eighth with 11 points after it lost 2-1 at Genoa. PSG beaten Ligue 1 leader Paris St. Germain blew a two-goal lead when they were beaten 3-2 at Dijon in the last 16 of the French League Cup Wednesday while play was halted as fans threw flares in a heated St. Etienne vs Lyon derby. Montpellier, second in the Ligue 1 standings, were also knocked out following a 2-1 home defeat to Lorient.