One Piece Chapter 51, page 12: Roronoa Zoro Falls Into the Sea

With a swift "ZUBAT!" sound effect, Mihawk plunges his tiny dagger directly into Zoro's chest. Blood splatters from the wound. Johnny and Yosaku scream in terror, "BRO!!!" Luffy grits his teeth in agony, groaning, "Nghh!" Despite the blade piercing his chest, Zoro stands firm, clenching his swords tightly, refusing to back down. Mihawk looks at him in surprise.