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_87 (opponent VARCHAR, event VARCHAR)
### Question:
Who did he fight in Rumble of the Kings 6?
### Answer:
SELECT opponent FROM table_name_87 WHERE event = "rumble of the kings 6"