Timesheet says "Close" and not "Submit for Approval"

[flashupdate]

I recently noticed that where it normally says "Submit for Approval" on my timesheet, it now simply says "Close". 
Is there a reason for this? Could it possibly be because it is changing from one approver to another approver (which is in process)?

Thanks for any help!

[ajdifonzo · Accepted solution]

If the timesheet approver if blank it will have close rather than submit for approval since there is no one to approve.