Question on Namespaces and keeping Restfull

OK this is a newbie question but hope it makes sense.

Lets say for my app I have got Admins, Clients and Users. I would like
to have an area for my clients to log into and it would be under a
namespace ie.

domains.com/clients/controllers.....

But this throws a spanner in the works if I wanted to keep restfull on
my clients model.

I know maybe the easy solution would be to have a different namespace
name. Is this a normal problem by trying to keep restfull resources ?

Thanks for any advice.