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_80 (overall INTEGER, round VARCHAR, position VARCHAR)
### Question:
Which average overall has a Round of 1, and a Position of center?
### Answer:
SELECT AVG(overall) FROM table_name_80 WHERE round = 1 AND position = "center"