Lazio vs Juventus will be a tight match. Both teams perform very well currently. Although Lazio is in 2nd place, I don't think that Lazio is better than Juventus. Juventus is just unlucky because he got a problem, so they lose many points. But if we consider the squad quality, I think Juventus squad is much better than Lazio squad. I really expect that Juventus to win this match, they have good motivation to return to top 5. If they win this match, I assume they may return to top 5 at the end of the season.
Lazio can not be underestimated. Lazio beat Napoli 0-1 at home to Napoli. Lazio also beat Roma 1-0. against Juventus, the chances are 50:50 I think, but Lazio has the competence to beat Juve.
Juventus did well, but Lazio had a more consistent performance. even though they didn't win big, Lazio consistently collected winning points, that's what made them in 2nd place in the Serie A standings.
I see no chance of underestimating Lazio this season. I would even say that Lazio is the most consistent team in Serie A at the moment. They are unbeaten in the last 6 matches. And they have beaten big teams like Napoli and Roma in recent times. Lazio fully deserved to win against Juventus. Juventus have a strong squad no doubt. However, it will be challenging for Juventus players to beat Lazio at home. Lazio players are in good form. They will be more confident in home matches. Both teams will have equal chances of winning the match. But if Lazio can score the first goal of the match I guess they will win.