CREATE TABLE table_20486 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Record" TEXT, "Game Site" TEXT, "Attendance" FLOAT)

What was the minimum attendance against the New Orleans Saints?
SELECT MIN("Attendance") FROM table_20486 WHERE "Opponent" = 'New Orleans Saints'
SELECT MIN("Attendance") FROM "table_20486" WHERE "Opponent" = 'New Orleans Saints'