I don't even think napoli will be facing a tough game against frankfurt. it's caused by frankfurt's performance in the bundesliga didn't look good at all. Napoli itself has been doing wintstreak since the early of the season. I think that the performance from napoli is far above frankfurt.
Napoli will be doing so well as long as it will not be losing some of its key players during the match against frankfurt. The rumours said that some players will be leaving from napoli and this will create a big difference.
I don't agree if you say Eintracht Frankfurt in the Bundesliga is bad, and I think it's likely that you don't know about the big changes that Eintracht Frankfurt has done in the Bundesliga. However, differentiating from their position in the standings in their respective leagues certainly won't be right, so yes, however, neither team will win easily in the knockout round or in the round of 16.
Even though Napoli have so far been unbeaten in Serie A, the fact is that Napoli is also not perfect to get all the wins in every match.
Therefore, basically Napoli also has weaknesses which of course the opposing team can take advantage of to score goals.
Eintracht Frankfurt itself this season looks very good even though at the beginning of the season Eintracht Frankfurt didn't look good, but as time goes by even now Eintracht Frankfurt can be in the top four of the Bundesliga standings. With this extraordinary increase, of course Eintracht Frankfurt will still have a chance to qualify and Napoli will never be easy to beat Eintracht Frankfurt in the round of 16.
It seems to me that Napoli have an advantage over Frankfurt in this game. It must be said that Napoli have played exceptionally well so far this season in comparison to Frankfurt.
We can see from their respective league tables that Napoli are currently leading the Italian league, whereas Frankfurt are currently ranked fourth in the German League. It would appear that Napoli's attacking options are far superior to Frankfurt's attacking options on paper. In spite of this, it may be too early to compare the two teams before they play each other. There is only one thing I would like to see in this game between these two prestigious teams, which is a really competitive match.