CREATE TABLE table_66893 ("Date" TEXT, "Opponent" TEXT, "Score" TEXT, "Loss" TEXT, "Attendance" TEXT, "Record" TEXT)

Name the opponent for Score of postponed (rain) not rescheduled
SELECT "Opponent" FROM table_66893 WHERE "Score" = 'postponed (rain) not rescheduled'
SELECT "Opponent" FROM "table_66893" WHERE "Score" = 'postponed (rain) not rescheduled'