Why Roger, why?

I think Roger has lost it. Maybe the robot that was inside him has been used in the Endhiran movie, but the bottom-line is that he has now become mortal.

We have all witnessed a Champion annihilate the mortals in the last 5+ years. We are also seeing the Champion become that mortal in the last 2 years. Now, will this mortal become the Champion again?

That, in my opinion, would forever eliminate any doubts on the fact that Roger Federer is the greatest tennis player of all time.