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_91 (pick INTEGER, round VARCHAR, nationality VARCHAR)
### Question:
What was the lowest pick number for a united states player picked before round 7?
### Answer:
SELECT MIN(pick) FROM table_name_91 WHERE round > 7 AND nationality = "united states"