CREATE TABLE table_67660 ("Date" CLOB, "Round" CLOB, "Opponent" CLOB, "Venue" CLOB, "Result" CLOB, "Attendance" FLOAT, "Scorers" CLOB)

Which Opponent has a Round of qf replay?
SELECT "Opponent" FROM table_67660 WHERE "Round" = 'qf replay'
SELECT "Opponent" FROM "table_67660" WHERE "Round" = 'qf replay'