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_59490 ( "Name" text, "Position" text, "League Apps" text, "League Goals" real, "FA Cup Apps" text, "FA Cup Goals" real, "League Cup Apps" text, "League Cup Goals" real, "Total Apps" text, "Total Goals" real )

### Question ###
What is the League Goals when the FA Cup Goals are 0, position is mf, League Cup Apps of 0, and name is Ben Thornley?

### Accurate SQL ###

SELECT AVG("League Goals") FROM table_59490 WHERE "FA Cup Goals" = '0' AND "Position" = 'mf' AND "League Cup Apps" = '0' AND "Name" = 'ben thornley'