Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_52 (to_club VARCHAR, transfer_fee VARCHAR, pos VARCHAR)
### Question:
What club received a DF player for free?
### Answer:
SELECT to_club FROM table_name_52 WHERE transfer_fee = "free" AND pos = "df"