CREATE TABLE table_10599 ("Week" TEXT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Kickoff [a ]" TEXT, "Game site" TEXT, "Attendance" TEXT, "Record" TEXT)

Tell me the opponent that had a result of l 27-20
SELECT "Opponent" FROM table_10599 WHERE "Result" = 'l 27-20'
SELECT "Opponent" FROM "table_10599" WHERE "Result" = 'l 27-20'