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

### Instruction:
What is the sum of goals scored in regular league play by Mustoe where he scored 0 goals in the League Cup?

### Inputs:
table_name: table, columns: ['Name', 'League', 'FA Cup', 'League Cup', 'Total']

### Response:
SELECT SUM League FROM table WHERE Name = mustoe AND League Cup < 0