Re: What is happening with Federer?
Federer is a rhythm player, and always has been. It doesn't help that he's playing good players in opening rounds before he can find his game.
However its more than that, and you can see that he can't find the timing on his shots. Its nothing to do with mental, lack of effort or whatever, but really a muscle memory problem.
He's a little less fast, a little less strong, and doesn't hit with the same racquet head speed that he once did. Consequently you need to adjust the timing on his swings, except that his old muscle memory is playing games with him and he can't quite settle it down.
He had this problem in 08 for awhile, and it took him a few months to settle himself down and find his range