Who was Manuela Maleeva opponent when she played a match partnered with michelle strebel?
CREATE TABLE "doubles_7_10" (
  "edition" text,
  "round" text,
  "date" text,
  "partner" text,
  "surface" text,
  "opponents" text,
  "result" text
);
SELECT "opponents" FROM "doubles_7_10" WHERE "partner"='michelle strebel';