Science Nerd 🌌 🌍 🧬 ⚛️
I must say everything is leading Zoro to fight Kaido
He has the only weapon that scarred him
Oda is making Zoro and hiyori like Oden âne toki
The biggest fact is that he's after Orochi and kaido would beat anyone Who hurt or kill this bitch
Two main reasons:

1. The parallel with Oden is just too stronk and blatant
2. Such a training isn't usual at all, so him just fighting a commander wouldn't explain it. Sanji will fight one but he didn't undertake such.