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_name_3 ( total_goals INTEGER, position VARCHAR, league_apps VARCHAR, total_apps VARCHAR )

### Question ###
What is the fewest total goals scored for players with under 171 league appearances, 151 total appearances, and the DF position?

### Accurate SQL ###

SELECT MIN(total_goals) FROM table_name_3 WHERE league_apps < 171 AND total_apps = 151 AND position = "df"