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_39 (match INTEGER, opponent VARCHAR)
### Question:
Which match did FCR 2001 Duisburg participate as the opponent?
### Answer:
SELECT SUM(match) FROM table_name_39 WHERE opponent = "fcr 2001 duisburg"