You know the one I'm talking about...when he was suddenly down 0-40 and he would hit three aces in a row, then a switch up that sets up the point, and the finishes with an unreturnable. I'm not particularly fond of Federer,(or Nadal for that matter) but he was the epitome of clutch back in the day. Nadal comes up with goods now, just in a different way, like absurd passing shot or get. And actually Federer use to do that to, just not from as far back as Nadal, and he would alternate between the clutch serves and other pressure shots. His mind is working, on what, is what I don't know.