Zip-per(2010)

Zip-per

Gen's high school baseball team is in trouble when they lose their pitcher to injury. Gen, who is the catcher, finds a prospective new pitcher, Leo, playing with some neighborhood kids. But while Leo is an amazing pitcher, he refuses to join the team! After his pro-baseball-player father's career was ruined by stories of throwing a game for money, Leo decided he would never play baseball. Will Gen be able to help Leo move past his father's shame and forge his own identity as a baseball player?

Source: mangahelpers