Murray, the way he has played so far since he lost that AO final has been worrying to say the least. not a fan of the guy, but surely i thought he would not be playing this bad. something is really bugging him, and he should do whatever it takes to get it out of him and move on (of course, easier said than done).
del potro will be fine, he has a slam under his belt and shown that he is mentally tough (beat both nadal and federer in the same slam, if that aint mental toughness, then i dunno what it is
), not expecting much out of del potro for the clay season, i look forward to how he goes from the US summer hardcourt season.