CREATE TABLE table_18328569_1 (clubs_remaining VARCHAR, winners_from_previous_round VARCHAR)

How many clubs are remaining when the winners from the previous round totals 4?
SELECT clubs_remaining FROM table_18328569_1 WHERE winners_from_previous_round = "4"
SELECT "clubs_remaining" FROM "table_18328569_1" WHERE "4" = "winners_from_previous_round"