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

### Instruction:
Tell me the highest Laps for grid less than 22 and riderS of ruben xaus

### Inputs:
table_name: table, columns: ['Rider', 'Bike', 'Laps', 'Time', 'Grid']

### Response:
SELECT MAX Laps FROM table WHERE Grid < 22 AND Rider = ruben xaus