"... Novak was doing the show, that he was ‑‑ that he couldn't run..." "I have pain, as well. I was running like hell and my feet were burning but I say nothing, no? I think that if you're not fit enough, then don't play.
But after every time he was asking for a trainer, he was running like hell and he was making the shot, but he does what he does a lot of times.
So did I trust him? No. No. I think he took his time because he did it because he was a little bit more tired and that's a part of the game. It help him a lot."
Tommy Robredo could not be more blatant about his annoyance towards the medical breaks Djokovic took during their grueling five-set match in the US Open fourth round action Tuesday night. Djokovic finally prevailed 4-6, 6-2, 6-3, 5-7, 6-3 to book himself a spot in the quarters.
From the looks of it, I think Robredo needed one or two medical breaks himself:

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Andy Roddick joined Robredo in his accusations but he kind of put it in a humorous way in his press conference:
Q. When asked about his injuries today, mentioning the right ankle as opposed to the left ankle, the other day ‑‑
ANDY RODDICK: Isn't it both of them? And a back and a hip?
Q. And when he said there are too many to count.
ANDY RODDICK: And a cramp.
Q. Do you get the sense right now that he is...
ANDY RODDICK: Bird flu.
Q. Lot of things. Beijing hangover.
ANDY RODDICK: Yeah.
Q. He's got pretty long list of illness.
ANDY RODDICK: Anthrax. SARS. Common cough and cold.
Q. Got a lot of things going on with him.
ANDY RODDICK: Sure.
Q. Do you think he's bluffing?
ANDY RODDICK: No, I mean, I'm sure ‑‑
Q. The way you're saying it, almost means you feel like...
ANDY RODDICK: No, if it's there, it's there. There's just a lot. You know, he's either quick to call a trainer or he's the most courageous guy of all time. I think it's up for you guys to decide.
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Meanwhile, the fans are anticipating the quarterfinal showdown between
Andy Murray (who demolished world number 10, Stanislas Wawrinka) and
Juan Martin Del Potro (who is on a 4 tournament winning streak) but

not for the obvious reason.
It seems that a fallout occurred between the two back in May when Murray accused the Argentine of insulting his mother, Judy. According the
timesonline.co.uk the bookies are actually offering odds of 50-1 that the two will pick up a fight during their match. I think I can safely bet on those odds, don't you think?!?! :)
Murray's comment on the matter was:
"I’ve known him since we were really young and the fact we haven’t talked since May doesn’t bother me... I wasn’t great friends with him before. I don’t need to be friends with him now."