CREATE TABLE table_203_730 (id DECIMAL, "week" DECIMAL, "date" TEXT, "opponent" TEXT, "result" TEXT, "attendance" DECIMAL, "bye" TEXT)

who did the broncos play against during the last game of the season ?
SELECT "opponent" FROM table_203_730 ORDER BY "week" DESC LIMIT 1
SELECT "opponent" FROM "table_203_730" ORDER BY "week" DESC NULLS LAST LIMIT 1