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_197638_7 (french_open INTEGER, player VARCHAR)
### Question:
When is the French Open when serena williams is the player?
### Answer:
SELECT MIN(french_open) FROM table_197638_7 WHERE player = "Serena Williams"