CREATE TABLE table_name_53 (opponent VARCHAR2, score VARCHAR2)

Who was the opponent when the score was 6 4, 6 7 (2 7) , 7 5?
SELECT opponent FROM table_name_53 WHERE score = "6–4, 6–7 (2–7) , 7–5"
SELECT "opponent" FROM "table_name_53" WHERE "6–4, 6–7 (2–7) , 7–5" = "score"