CREATE TABLE table_name_22 (date VARCHAR, opponents_in_the_final VARCHAR)

What is the date when the opponent in the final is gast n etlis mart n rodr guez?
SELECT date FROM table_name_22 WHERE opponents_in_the_final = "gastón etlis martín rodríguez"
SELECT "date" FROM "table_name_22" WHERE "gastón etlis martín rodríguez" = "opponents_in_the_final"