In a battle, Zoro is luckier than Sanji because he rarely faces an enemy he cannot defeat.
1. Buggy
The clown Buggy can be proud of a remarkable achievement in the past, that is, he seriously injured Zoro in Orange Village.
2. Mihawk
In One Piece, Dracule Mihawk is a member of the Shichibukai and is also the current owner of the title `World’s Greatest Swordsman`.
With this defeat, Zoro then cried and promised Luffy that he would never lose again, he would defeat Mihawk and take the title of number one swordsman even though he was seriously injured.
3. Arlong
When facing Arlong, Zoro was not at his peak.
4. Enel
In Skypiea, there are only two characters that can hurt Enel, Wiper with his Sea Stone and Luffy with his rubber body, the natural enemy of lightning.
5. Bartholomew Kuma
When Kuma appeared on Thriller Bark, Zoro had no way to defeat him.
Later, seeing his captain `hanging by a thread` at the hands of Shichibukai Kuma, Zoro volunteered to bear Luffy’s pain from his fight with Gekko Moriah.
6. Kizaru
Kizaru almost killed Zoro in Sabaody, but at that time Zoro still hadn’t recovered after receiving it but painfully for Luffy in Thriller Bark.