John Dunbar
correct about everything
I don't understand this line of reasoning. Are you expecting an all-time great to forget how to play tennis once they reach their 30s or something? Agassi was No. 2 at 33. Just like Connors, Rosewall, etc. It's not a coincidence that the best of the best managed to stay at the top of the rankings once they reached their mid-30s.
they don't forget how to play but that doesn't mean their bodies magically stop aging. i simply maintain that the field has opened up for djokovic like the red sea for moses. nadal has been a non-entity outside clay for a good year now, murray only recovered some of his form late last year, and all the "young guns" are shooting blanks. federer is still certainly capable of producing the kind of tennis that wins tournaments in patches, but i have very little doubt that in his current form he will start slipping down in the rankings. simply too liable to upsets at the moment.
as sad as it is, berdych is pretty much the only top player outside djokovic to reach anything that might be called peak form.