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

### Instruction:
How many players were in the event after 2011 with less than 9 aces?

### Inputs:
table_name: table, columns: ['!Aces', 'Player', 'Opponent', 'Round', 'Year', 'Event', 'Surface', 'Sets']

### Response:
SELECT COUNT Player FROM table WHERE Event > 2011 AND !Aces < 9