Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_28039032_1 (clubs_remaining VARCHAR, round VARCHAR)

### Question ###
How many clubs were remaining in the preliminary round?

### Accurate SQL ###

SELECT clubs_remaining FROM table_28039032_1 WHERE round = "Preliminary round"