One Piece Chapter 47, page 16-17: Pirate Fleet Admiral "Don Krieg"

Suddenly, a massive sack of food is dropped onto the floor with a heavy thud. A calm voice says, "There's enough food here for a hundred people. So hurry up and bring it to your men." Everyone turns in shock to see Zeff standing there. The cooks cry out, "Owner Zeff!" while Don Krieg is stunned, muttering, "Did... did they just say, 'Zeff'!?" The cooks protest, "Sir! How could you give them the food!? Just what's the meaning of this!? Once those pirates on that ship recover, they'll take over our restaurant!" Zeff replies, "That's only if, they still have any fighting spirit left at all...

Zeff looks directly at Krieg and asks, "Isn't that right, defeated warriors of Grand Line?" Luffy gasps, "Grand Line!?" while Gin sweats in silence. The cooks are completely shocked, whispering, "W-what!? Don Krieg defeated!?", "The pirate fleet admiral of 50 ships...!?", "The strongest man of East Blue...!?", and "Even he was utterly defeated by Grand Line!?" Don Krieg stares back at Zeff, sweating as he recognizes him: "You're... 'Red-Leg Zeff!