Who was the opposing team when the scorer was ronaldinho 90+3'?
CREATE TABLE "uefa_cup" (
  "match" real,
  "date" text,
  "round" text,
  "home_away" text,
  "opponent_team" text,
  "score" text,
  "scorers" text
);
SELECT "opponent_team" FROM "uefa_cup" WHERE "scorers"='ronaldinho 90+3''';