Andy was always criticised for clutching various parts of his anatomy, thereby letting his opponent know he had a problem. Now the problem is all over the big screen. Doesn't make sense.
Andy's body clutching usually happened when he was either losing or frustrated with himself, and that's something he's practically stopped doing, although unfortunately the head banging hasn't. He pulled his hamstring during the Federer match, probably when, to quote one source, he 'mis-stepped' and fell, yet apart from wincing at the time he gave no sign for the rest of the match that anything was amiss, and nor did I see him clutch that leg during the final, yet he said afterwards that it was that which was giving him more discomfort than his foot.
The blisters were Andy's fault though in a way he should have put Fed away alot easier than he did. He gift wrapped the 4th set to Fed with a ribbon and a box of chocoloates. These are the things that are gonna make the difference in future. Andy Murray is just Not as ruthless as he needs to be but im sure Lendl will help him to get there.
In all fairness to Andy I've never known him to be troubled by blisters before, not even during the USO final, and one of the BBC comms said he thought his shoes were the culprit because in the Federer match he'd noticed him tugging at them a couple of times. Certainly there did seem to be quite a bit of lace tying going on - so could the blisters have been caused by a pair of trainers that weren't quite up to standard? If his feet were sliding around in them, however slightly, that alone would be enough to cause the problem.