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_6 (age INTEGER, player VARCHAR)
### Question:
At what age did Roy Emerson complete the Grand Slam?
### Answer:
SELECT MAX(age) FROM table_197638_6 WHERE player = "Roy Emerson"