Damn, that's 1200 ranking points he won't be able to defend...
Murray now almost is guaranteed to take over the #3 spot.
But I am still trying to make sense of this...
His last match was the match he lost against Rosol at Wimbledon.
During that match it did not look like he was injured in any way, just not playing well, whereas Rosol was playing the match of his life, and slapping winners left and right, also, the timing of the closing of the roof clearly got to Nadal.
Even in the press conference afterwards, Nadal did not mention any injury.
And all of a sudden, he pulls out of the the exo with Novak, then the olympics, Toronto, Cinci, and now the USO.
Just doesn't make any sense., there must be more going on than just knee tendinitis.
Hopefully, he will make a full recovery from whatever it is.