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

### Instruction:
Loss of wilcox, and a Date of jun 18 had what opponent?

### Inputs:
table_name: table, columns: ['Date', 'Opponent', 'Score', 'Loss', 'Crowd', 'Record']

### Response:
SELECT Opponent FROM table WHERE Loss = wilcox AND Date = jun 18