How to create a landing page for a managed path?

Hi All, 

I have a SharePoint site and a wildcard manged path - 

Sharepoint.com/managedpath/Sitecollection1

Sharepoint.com/managedpath/Sitecollection2

I want to add a page at 

Sharepoint.com/managedpath/default.aspx

Is there a way of doing this? 

Thanks, Tony