I'm surprised official Viz didn’t translate the line of
Ushimaru being 大剣豪 (Dai-Kengou: great swordsman) in the latest chapter. It’s important because only him, Mihawk and Ryuma are called Dai-Kengou in all chapters till now. Zoro's dream is to become the strongest Dai-Kengou.
Kaidou defeated him alongside +2 powerful swordsmen.
@MonsterKaido @Hanzo hattori
They were defeated 2 times.
@Tejas @SkySanji