A match billed as the biggest in Serie A so far this season seemed to be heading the way of the Serie A leaders when Julio Cruz put them in front four minutes before half-time.

But substitute Camoranesi grabbed a leveller with 13 minutes to go to frustrate the Nerazzurri, whose lead at the top of the standings was cut to two points over the weekend following Fiorentina's 1-0 win at Lazio on Saturday night.

Roma missed the chance to go second after squandering a 2-0 lead at Empoli.

The Giallorossi looked in an unassailable position thanks to goals from Ludovic Giuly and Matteo Brighi but Ighli Vannucchi reduced the arrears and substitute Sebastian Giovinco snatched a last-gasp equaliser.

Fifth-placed Udinese survived some anxious moments before extending their unbeaten run to eight games with a goalless draw at Livorno while Atalanta are up to sixth thanks to a 2-1 win at Catania.

Reggina came within seconds of registering their first win of the season - and handing new coach Renzo Ulivieri a debut win - only to be foiled at the death by Napoli's Ezequiel Lavezzi.

The struggling Amaranto had taken a 55th-minute lead through Luca Vigiani's header and goalkeeper Andrea Campagnolo saved a 75th-minute penalty, only for Lavezzi to strike just before the end.

Genoa were pegged back twice by Palermo as the two sides shared six goals at the Luigi Ferraris Stadium.

Sampdoria won 3-0 at Cagliari thanks to first-half goals from Sergio Volpi, Andrea Caracciolo and Christian Maggio.

Daniele Galloppa's late equaliser earned strugglers Siena a 2-2 at Parma.

Saturday's other game saw AC Milan fail to register their first Serie A win at the San Siro this season as they played out a goalless draw with Torino.