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_88 (against INTEGER, played VARCHAR, drawn VARCHAR, difference VARCHAR)
### Question:
What is the average Against when the drawn is more than 2 and the Difference of- 17, and a Played smaller than 20?
### Answer:
SELECT AVG(against) FROM table_name_88 WHERE drawn > 2 AND difference = "- 17" AND played < 20