What a convoluted piece of utter garbage nonsense from a Nadal **** who is lying through his teeth. Cuz the fact of the matter is everybody and (specifically including Nadal) have repeatedly tried to execute tweeners almost just as soon as Fed does one all thruout last year and even this year. The only difference is that all of Nadal's recent attempts failed. And yet here you are spouting complete and utter garbage false information that Fed is the only one who's doing it. NO he is just the only one who is making sure that the shot is on target. But never mind, I'm not holding my breath that you are even slightly interested in facts.