There is no build up between Zoro and King therefore they will not fight each others.
Just look at the other arc in One Piece, you’ll see that every end of arc fight for Zoro was build throught the arc thzt’s why it was obvious that he will fight :
-Cabaji...oh wait no, the first time he saw Cabaji he fought and beat him
-The Meow brothers...oh wait no, the first time he saw them he fought and beat them
-Mr1...oh wait no, the first time he saw him he fought and beat him
-Braham... oh wait no, the first time he saw him he fought and beat him
-Ohm... oh wait no, the first time he saw him he fought and beat him
-Ryuma... oh wait no, the first time he saw him he fought and beat him
-Hyozou... oh wait no, the first time he saw him he fought and beat him
-Monet... oh wait no, the first time he saw her he fought and beat her
Huum, there is a pattern there but I-i cannot see it
Yeah I get it, Zoro is always soloing the second strongest fighter behind Luffy’s opponent whether if he encountered him/her before or not
Thus why he will solo King
![Arnoling :arnoling: :arnoling:](https://i.imgur.com/CPUO3E9.gif)
![Arnoling :arnoling: :arnoling:](https://i.imgur.com/CPUO3E9.gif)