Who was playing when the score was 5–7, 5–7?
CREATE TABLE "doubles_7_3_4" (
  "outcome" text,
  "year" real,
  "championship" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "score" text
);
SELECT "opponents" FROM "doubles_7_3_4" WHERE "score"='5–7, 5–7';