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_17120964_9 (competition VARCHAR, opponent VARCHAR)

### Question ###
what was the competitoin where the opponent is sheffield scimitars?

### Accurate SQL ###

SELECT competition FROM table_17120964_9 WHERE opponent = "Sheffield Scimitars"