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

### Instruction:
What is the highest Round, when the Opponent is Junior Pitbull?

### Inputs:
table_name: table, columns: ['Result', 'Record', 'Opponent', 'Method', 'Date', 'Round', 'Location', 'Notes']

### Response:
SELECT MAX Round FROM table WHERE Opponent = junior pitbull