CREATE TABLE table_40189 ("Club" TEXT, "City" TEXT, "Stadium" TEXT, "2009 season" TEXT, "Group" TEXT)

Which City has a Stadium of estadio san crist bal?
SELECT "City" FROM table_40189 WHERE "Stadium" = 'estadio san cristóbal'
SELECT "City" FROM "table_40189" WHERE "Stadium" = 'estadio san cristóbal'