Nadal getting better for sure; but his performance not affected

I really don't think Nadal was truly affected by the knee by the way; this was seconded by himself in the press release after the match. Here's the excerpt from Wimbledon official website: http://www.wimbledon.org/en_GB/news/interviews/2007-07-08/200707081183920549421.html

Q. What about the knee, and the injury?

RAFAEL NADAL: Well, was not the best moment, no, because I was playing fine in the fourth for a while and I have to call to the trainer. But doesn't matter, no? Just right now is better, so doesn't matter. Don't worry about the knee. Thank you, but was fine.