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_68 (player VARCHAR, nationality VARCHAR, position VARCHAR, round VARCHAR)
### Question:
Which player from the United States plays defence and was chosen before round 5?
### Answer:
SELECT player FROM table_name_68 WHERE position = "defence" AND round < 5 AND nationality = "united states"