Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Who was the opponent after week 9 with over 49,221 attending, and a Result of w 38-20?

### Inputs:
table_name: table, columns: ['Week', 'Date', 'Opponent', 'Result', 'Venue', 'Attendance']

### Response:
SELECT Opponent FROM table WHERE Week > 9 AND Attendance > 49,221 AND Result = w 38-20