Serie A's inform team Cagliari stunned Juventus 3-2 at Turin's Stadio Olimpico to put a huge dent in the Italian giants' title hopes on Saturday.

Goals from Momo Sissoko and PavM Nedved gave Juve the lead at half time following Davide Biondini's opener, but Brazilian Jeda and Alessandro Matri struck after the break to record a famous victory for the Sardinians.

It means second-placed Juventus, who lost their second game in a row, could fall to nine points behind leaders Inter Milan if the champions win at home tolbrino on Sunday.

Juve coach Claudio Ranieri was magnanimous in defeat but admitted he didn't know what was wrong with his team.

"They deserved it. They played great, they were organised and that's not a surprise when you saw how they played against Inter and Lazio," he said.

Cagliari sprung a surprise on 16 minutes, though, as they took the lead following some shoddy defending by the hosts.

Michele Fini sent over a deep cross from the right to the back post where the dimunitive Marco Marchionni was left to mark Biondini who easily climbed above his man to head powerfully past Gianluigi Buffon.

The lead lasted only a quarter of an hour before Sissoko levelled matters, rising highest in the box to head home an Alessandro Del Piero comer.

Things got even better for Juve on 38 minutes as Nedved's ctoss into the box was only half cleared and the Czech veteran himself followed up to smash home a half-volley from just inside the area.

Juventus were looking good at the break but Cagliari turned the match on its head after the restart with two clinical counter-attacks.

On 54 minutes, Andrea Cossu ran down the left flank and crossed into the centre where Jeda beat the onrushing Buffon.

And on 78 minutes two Cagliari substitutes combined to stun the home crowd.

Matri played a one-two with Andrea Lazzari before finding himself in the clear and he comfortably slotted past Buffon.

Earlier, Napoli gave up a two-goal lead in a 2-2 draw with Udinese in Naples.