http://www.mangapanda.com/one-piece/739

Trebol captures the dwarfs and ignites them with his sticky powers. Usopp get's Leo and tells them to run but Leo won't cause he needs to remove Sugar's curse so Thunder Solider can defeat Doflamingo. Earlier that morning Thunder and Rebecca argue over the result of the paper how he doesn't want her to compete and how she believes he'll die in this operation of his. Leo tells Usopp, Thunder was the only toy not to receive the laws from Sugar and he is the strongest gladiator in all of Dressrosa, Kyros.