Mezue nkebi ahịrịokwu a: N'oge mbụ nke Njikọ Kacha Ukwuu nke Baseball (MLB), a dịghị ekwe ka a gbanwee onye ọkpụkpọ ma e wezụga n'ihi ọrịa ma ọ bụ mmerụ ahụ. Onye na-agba bọl nke na-adịghị eme nke ọma ga-eji onye ọzọ na-agba bọl nọ n'ọhịa gbanwere ebe ọ nọ. Ihe ngosi enyemaka mbụ na nnukwu egwuregwu bụ na 1876 na Boston Red Caps outfielder Jack Manning na-agbanwe ọnọdụ ya na pitcher Joe Borden. N'oge a, a na-akpọkarị ndị na-atụgharị ihe na-agbanwe site n'ọnọdụ ọnọdụ gaa n'igbe onye na-atụgharị ihe n'ụzọ a "mgbanwe" pitchers. A ka na-eji usoro a nke ịgbanwere ndị egwuregwu n'etiti ugwu na n'èzí eme ihe mgbe ụfọdụ na baseball nke oge a, mgbe ụfọdụ n'ogologo egwuregwu ndị ọzọ ebe otu egwuregwu na-agbapụ ndị egwuregwu. N'afọ 1889, ihe mbụ mere na bullpen bụ mgbe a gbanwere iwu iji kwe ka a gbanwee onye ọkpụkpọ n'oge ọ bụla. Ndị na-agba ọsọ na-amalite na-amalite na-amalite otu ma ọ bụ abụọ innings n'etiti mmalite. N'afọ 1903, n'oge egwuregwu nke abụọ nke asọmpi mbụ
World Series, Pittsburgh's Bucky Veil ghọrọ onye mbụ na-enye aka na World Series akụkọ ihe mere eme.