Which opponent was playing on December 20, 1998?
CREATE TABLE table_name_63 (opponent VARCHAR, date VARCHAR)
SELECT opponent FROM table_name_63 WHERE date = "december 20, 1998"
### Context: CREATE TABLE table_name_63 (opponent VARCHAR, date VARCHAR) ### Question: Which opponent was playing on December 20, 1998? ### Answer: SELECT opponent FROM table_name_63 WHERE date = "december 20, 1998"