Episode 172: Ordeal of Swamp! Chopper vs. Priest Gedatsu!!
One Piece Episode 172 „Ordeal of Swamp! Chopper vs. Priest Gedatsu!!“. Adapts chapters 261–263. First aired: 2003-11-02.
- Read on in the manga from: Chapter 264 (Volume 28 – Wyper the Berserker)
- Title (Japanese): 沼の試練! チョッパーVS神官ゲダツ!!
- Title (romaji): Numa no shiren! Choppā VS Shinkan Gedatsu!!
- First aired (Japanese): 2003-11-02
- First aired (German): 2005-10-06
- Category: Story
- Arc: Skypiea Arc
- Chapters adapted: Chapters 261, pages 12-14; Chapters 262; Chapters 263, pages 2-4