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_85 (overall INTEGER, round VARCHAR, position VARCHAR)
### Question:
WHAT IS THE AVERAGE OVERALL WITH A ROUND LARGER THAN 9, AND RB POSITION?
### Answer:
SELECT AVG(overall) FROM table_name_85 WHERE round > 9 AND position = "rb"