Former Napoli and Juventus defender Fabio Cannavaro is backing the former to win this weekend's blockbuster.

Cannavaro enjoyed spells with both Italian giants and they'll face off at the Juventus Stadium as co-Serie A leaders on Saturday evening.

"I have great respect for Juventus, a club who gave me a lot and I won two Scudetti with them," the 2006 World Cup winner told the Gazzetta dello Sport.

"However, I'm a Neapolitan and Napoli are the club where I grew up. The heart always wins."