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

### Instruction:
What was the date that a player went to the club Doncaster Rovers?

### Inputs:
table_name: table, columns: ['Exit Date', 'Pos.', 'Player', 'To club', 'Transfer fee']

### Response:
SELECT Exit Date FROM table WHERE To club = doncaster rovers