Am I surprised with that? Not at all. I was already expecting a really close game and bookmakers are also expecting for the same thing. Maybe there is a gap of sixteen points in the standings but this is easy to misguide someone. Even though Lazio aren't performing the same as the previous season they can still make serious difficulties home. Especially while Juventus are in a bad form I wouldn't bet on them. If I place a bet my choice would be both teams to score @2.03.
But if for example Juventus is able to play well in this away match against Lazio, I think Juventus is able to end the match with a clean sheet. Indeed, based on the results of the existing head to head also at least when the match between Lazio and Juventus is like this, then the result is more often about both teams to score. But somehow, at this moment I think Juventus might not concede in this match because yes, I think Juventus also has a good defense. Therefore, then I think in this match there won't be many goals scored and betting on under goal might still be considered too but indeed, any result can still happen but I hope Juventus don't lose.