CREATE TABLE table_53566 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Who was the opponent when Footscray played as the home team?
SELECT "Away team score" FROM table_53566 WHERE "Home team" = 'footscray'
SELECT "Away team score" FROM "table_53566" WHERE "Home team" = 'footscray'