When the National League split into two and then three divisions , the Cardinals and Cubs remained together .
Games featuring the Cardinals and Cubs see numerous visiting fans in either Busch Stadium in St. Louis or Wrigley Field in Chicago .
When the National League split into two and then three divisions , the St. Louis and Chicago remained together .
Games featuring the Cardinals and Cubs see numerous visiting fans in either Busch Stadium in St. Louis or Wrigley Field in Chicago .