Which opponent was on July 21, 2008?
CREATE TABLE table_name_57 (opponent VARCHAR, date VARCHAR)
SELECT opponent FROM table_name_57 WHERE date = "july 21, 2008"
### Context: CREATE TABLE table_name_57 (opponent VARCHAR, date VARCHAR) ### Question: Which opponent was on July 21, 2008? ### Answer: SELECT opponent FROM table_name_57 WHERE date = "july 21, 2008"