That is precisely why he needs to strengthen even further, which he will do in the Elbaf arc of One Piece through various ...

The Elbaf arc of One Piece is officially underway and ... the Wings of the Pirate King, Zoro and Sanji, are most definitely going to shine here, as well as struggle in battle, but either way ...

Zoro is headed to the underworld in Elbaf to face Loki soon. Zoro's big battle in Elbaf will be against Saint Sommers. Zoro's fight with Saint Sommers may prepare him to face Dracule Mihawk.