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_23 (opponent VARCHAR, surface VARCHAR, tournament VARCHAR)
### Question:
Who was the opponent in the math that was played in Nice on a clay court?
### Answer:
SELECT opponent FROM table_name_23 WHERE surface = "clay" AND tournament = "nice"