What was the names of Jackie Robinson's enemies?

Jackie Robinson faced significant opposition during his career, primarily from individuals and groups who opposed racial integration in baseball. Notable figures included certain players, fans, and media personalities who expressed hostility toward him. Specifically, Philadelphia Phillies manager Ben Chapman was known for his derogatory remarks, while some players, like the St. Louis Cardinals' Enos Slaughter, were also less than welcoming. Overall, Robinson's journey was marked by widespread racism and prejudice from various quarters.