Juventus defender Federico Peluso says they must treat Napoli as a Cup final.
The top two go head-to-head in a Scudetto showdown at the Stadio San Paolo.
"We can't be thinking about the points advantage," Peluso told Juventus Channel. "We're just concentrating on ourselves.
"We know what our aims are and what we want to achieve game after game. Friday's match is obviously important and so we hope to come out on top."