Name the opponent for 3–6, 4–6, 6–1, 6–7 (7–9)
CREATE TABLE "singles_14" (
  "edition" text,
  "round" text,
  "date" text,
  "against" text,
  "surface" text,
  "opponent" text,
  "w_l" text,
  "result" text
);
SELECT "opponent" FROM "singles_14" WHERE "result"='3–6, 4–6, 6–1, 6–7 (7–9)';