CREATE TABLE table_45392 ("Year" FLOAT, "Champion" TEXT, "Runner-Up" TEXT, "Result" TEXT, "Date" TEXT, "Venue" TEXT, "Attendance" TEXT)

Who was the champion when the attendance was 70,000?
SELECT "Champion" FROM table_45392 WHERE "Attendance" = '70,000'
SELECT "Champion" FROM "table_45392" WHERE "Attendance" = '70,000'