September 4, 1948 Rookie Roy Campanella at Ebbets Field, 1948. Campy raised his game in Flatbush, hitting for a much higher career average at home (.300) than on the road (.254), which also extended to the postseason (.302 home, .157 road) & also for 10 games at Roosevelt Stadium (.333)
Campanella will win 3 MVP Awards during his career and be inducted into the Hall Of Fame.