User blog comment:FairyRaven/Fairy Tail Chapter 313: Champion's Scenario, Review and Commentary/@comment-4597065-20130104125146/@comment-5268982-20130104130654

Well, for Juvia just check chapter 291, you will see her suddenly out of the water, without anyone touching her. Same for Lucy, although she was going out of the sphere, she is suddenly teleported back to the center of the sphere surprising everyone.