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

### Instruction:
What is the Week when the winner was mary joe fernández 6–4, 7–5?

### Inputs:
table_name: table, columns: ['Week of', 'Tier', 'Winner', 'Runner-up', 'Semi finalists']

### Response:
SELECT Week of FROM table WHERE Winner = mary joe fernández 6–4, 7–5