One Piece Chapter 32, page 12: Grave Danger

The lead star flies directly toward the fight. Zoro notices the projectile and is forced to react, distracting him from his defense. Sham and Buchi instantly seize the opening, shouting, "HE'S DISTRACTED!!" Zoro grunts in dismay, while Usopp realizes his mistake, gasping, "AH?!"