Napoli were beaten at home for the first time this season as Fiorentina recovered from their Champions League disappointment against Bayern Munich in midweek with a fortunate win.

Ezequiel Lavezzi put Napoli on course for what looked like an easy win for the home side in the 47th minute, but shortly after they were denied a clear penalty, Fiorentina turned the game on its head.

Catania threw the Serie A title race open and took a giant step towards securing their own future in the top flight by beating 10-man Inter Milan on Friday night.

Diego Milito put the Nerazzurri in front in the 54th minute, but Catania refused to accept defeat and Maxi Lopez equalised 20 minutes later.

Sulley Muntari was sent off after only two minutes on the field as he gave away a penalty which was converted by Giuseppe Mascara in the 81st minute.

AC Milan dominated but had to settle for a point at the Stadio Olimpico.

In a battle of two teams who still have scudetto aspirations, the Rossoneri had numerous opportunities to break the deadlock but failed to take any of them.

The result left Milan in second place - three points behind Serie A leaders and city rivals Inter, who will take on Genoa with a chance to extend their gap at the summit to six points.

Roma remained third, two points behind Milan.