What is the Champion at Sopot prior to 2006 with a Score of 6–4, 6–7(7), 6–3?
CREATE TABLE "men_s_doubles" (
  "location" text,
  "year" real,
  "champion" text,
  "runner_up" text,
  "score" text
);
SELECT "champion" FROM "men_s_doubles" WHERE "location"='sopot' AND "year"<2006 AND "score"='6–4, 6–7(7), 6–3';