Zoro doesnt lose his fights. He's not like Luffy who fights the same guy for multiple rounds and then wins. Zoro fights Daz bones who he cannot even injure the same way luffy fights Crocodile who he also canot even injure but the difference is Oda makes sure Zoro wins there and then. No multiple rounds.
If Zoro literally cannot beat king by himself then Oda just won't make him fight king. Simple as that.
And all the head canons in the world will explode.
All the Strawhats are here!
And they are wearing some nifty outfits. Luffy, Nami, Sanji, and Franky look especially great. It’s clever how Nami’s climatact looks like she’s wielding a naginata. A weapon typically used by the onna-bugeisha (female samurai).
And Luffy’s indeed wearing a cape like Shanks. A great figurative reminder he’s approaching Shank’s level as a pirate.
And all the topknots are gone. We’ve already seen what it means for Luffy, since he can now put on his strawhat on his head again. And Zoro’s gonna be wearing his bandana soon.