Dammit, Orosa wasn't trying to kill him lol.  He was basically trying to punch him in the jaw with the pommel (https://cdn.shopify.com/s/files/1/1196/6196/products/61Fih4ko05L._SL1000_1024x1024.jpg?v=1571445416)(the bottom knobby part) of the sword to knock him out.