Yeah I don't get that either as it used to be perhaps his best chance of winning a slam. Perhaps fatigue got the better of him this time; he's been at it practically non-stop the whole year only taking the last Davis Cup tie out iirc.I don't know why but his recent record at the US Open is quite poor in comparison to his performances at other Slams, hasn't reached a SF there since he won it 4 years ago.