CREATE TABLE table_64687 ("Team #1" TEXT, "Agg." TEXT, "Team #2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

What is the agg when the seconf leg is 58-75?
SELECT "Agg." FROM table_64687 WHERE "2nd leg" = '58-75'
SELECT "Agg." FROM "table_64687" WHERE "2nd leg" = '58-75'