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

### Instruction:
Which Attendance has an Opponent of perth glory, and a Round of 9?

### Inputs:
table_name: table, columns: ['Round', 'Date', 'Opponent', 'Score AUFC – Away', 'Attendance', 'Weekday']

### Response:
SELECT MIN Attendance FROM table WHERE Opponent = perth glory AND Round = 9