CREATE TABLE table_52328 ("Date" TEXT, "Time" TEXT, "Score" TEXT, "Set 1" TEXT, "Set 2" TEXT, "Set 3" TEXT, "Total" TEXT, "Report" TEXT)

What was the first set with a third set of 25 21?
SELECT "Set 1" FROM table_52328 WHERE "Set 3" = '25–21'
SELECT "Set 1" FROM "table_52328" WHERE "Set 3" = '25–21'