Versus Battle - Naruto vs One Piece

One Piece (manga) - Anime News Network

Worstgen

Pain arc(Naruto) or Dressrosa Arc(One Piece) - Gen. Discussion - Comic Vine

Star Wars verse Vs Naruto and One Piece verse. - Battles - Comic Vine

A forum of one piece from 2003; some of this takes te hilarious, remember when we thought 30 million was worth something? : r/OnePiece

Chapter 766, One Piece Wiki

One Piece Manga Sends Off Naruto With a Classy Secret Message - Interest - Anime News Network

Let's Talk 'One Piece' / Enthusiasts Unite - Media Discussion - MLP Forums

Versus Battle - Raiga Kurosuki (Naruto) vs Eneru (one piece)

The Origin of the Big 5 - Forums