In the match played with partner Andres Molteni, with the outcome of winner, who was the opponent?
CREATE TABLE "doubles_finals" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "partner" text,
  "opponent" text,
  "score" text
);
SELECT "opponent" FROM "doubles_finals" WHERE "outcome"='winner' AND "partner"='andres molteni';