View source for CBF4

{{Chapterinfobox |
title_en=Introducing the Frontier Brains! |
title_ja=フロンティアブレーン出現! |
title_ro=Enter the Frontier Brains! |
image=CBF4.png |
number=4 |
manga_series=Pokémon Battle Frontier |
series=[[Pokémon Battle Frontier]] |
volume=1 |
location={{Gdis|Battle Frontier|III}} |
prev_chapter=''[[CBF3|Battle Between Student and Master!]]'' |
next_chapter=''[[CBF5|The Predestined Battle!]]'' |
chapter=Emerald |
}}

'''Introducing the Frontier Brains!''' (Japanese: '''フロンティアブレーン出現!''' ''Enter the Frontier Brains!'') is the fourth chapter of the [[Pokémon Battle Frontier]] manga.