Terminated Employee Expense Report Submission

Summary:

The majority of our expense reports are related to Credit Card transactions (corporate card) that are company pay. Meaning, an employee is responsible for submitting the transactions tied to their credit cards via an expense report. The payment doesn't go to them, but is due to our card supplier company.

When transactions come through after that employees termination, we have the manager setup as a delegate to create an expense report and submit the transactions on the terminated employees behalf. Once the manager submits, the expense report goes to the terminated employee for an approval. How can we bypass this terminated employee's approval?