Juventus still haven't lost in the league. Napoli away game will be tough for Juventus. However, Juventus has a structure that doesn't give up on fighting against every team. They have young and good players and Motta seems to have taught the team the best way to defend. They played against strong opponents in the Italian League but they still haven't lost. We can say the same thing for Napoli. Maybe they won't lose against Napoli either but I think Juventus will be the closest to losing.
This is an interesting match that will take place on Sunday. Juventus has a solid defense that is their capital when playing at Napoli home later, for now that is what they can rely on because in terms of attack Juventus is still weak and not much different from Napoli even though they are at the top of the standings, their goal productivity is still lower than Inter, but Napoli looks more convincing to win. So I don't think this match will produce many goals, 1-0 or 1-1 might be what will happen.
Juventus' defensive line is really solid, but at the same time, Napoli also has a good front line, and they are on a winning streak. This kind of game is always hard to predict what will actually happen. However, based on my observations, I would say Napoli may have a slight chance of winning this match. But let's see what happens because, the way Napoli is now, they don't want to miss any opportunities. If they do, Inter Milan might take their position, and Napoli certainly wouldn't want that to happen. I know they will try their very best to win the game, but let's wait until Sunday and see the result in the end.