One Piece Chapter 16, page 5-8: VERSUS BUGGY'S CREW!

Mohji urgently warns Buggy that Luffy is a rubber man who ate a Devil Fruit, explaining why the Buggy Ball bounced off him. Buggy is shocked to hear this and angrily demands to know why Mohji didn't tell him sooner, while Luffy playfully demonstrates his stretchy cheeks to Nami.

Cabaji charges forward on his unicycle, telling Mohji to get out of his way. Luffy quickly kicks the dazed Mohji aside to clear the path as the acrobat pirate rushes toward them.

Cabaji leaps into the air on his unicycle, drawing his sword and shouting, 'I'll cut 'em to mince-meat, Cap'n!!' As Luffy prepares to fight, Zoro steps in and blocks Cabaji's slash with a loud clash of steel.

Cabaji challenges Zoro to a formal duel, which Zoro accepts. Luffy notices Zoro's severe stab wound throbbing and offers to take over, but Zoro refuses. Cabaji immediately exploits Zoro's weakened state, blowing a stream of fire and smoke called 'The Breath of Death!' directly at him.