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_17968229_1 ( home__2nd_leg_ VARCHAR )

### Question ###
If second leg is Newell's Old Boys, what name is first leg?

### Accurate SQL ###

SELECT 1 AS st_leg FROM table_17968229_1 WHERE home__2nd_leg_ = "Newell's Old Boys"