All Bases Loaded!(2006)

Besupoji!

Ever since being tossed aside by a Little League manager for being too small, Hiyori Tsukiya vowed to quit baseball forever. So in its stead, he picks up track and field. Hiyori excels and even places first in a national race... But even after five years, Hiyori's heart still can't seem to give up the longing to stand in the diamond... The time comes to enter high school. And by the twist of fate, Hiyori finds himself being recruited by the baseball team's mysterious manager. Will this be his chance to finally reclaim his love for baseball? Will Hiyori even be able to get along with this motley crew of a baseball team...?

(Source: Manga Planet)