That's the most frightened I've ever seen anyone, lol.
We all know Zoro isn't down for the count. HE CAN'T BE BEATEN. Except my Mihawk, of course (for now). He must have held back for some reason. Maybe it's related to the sword he wants. Or maybe he thinks Ryuuma is weak and wants to give him a handicap to make it interesting.
Very good chapter.