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 (appeared INTEGER, rr_w_rate VARCHAR, player VARCHAR)
### Question:
For Angelique Kerber who had an RR Rate of less than 0.33, what's the appeared?
### Answer:
SELECT SUM(appeared) FROM table_name_87 WHERE rr_w_rate < 0.33 AND player = "angelique kerber"