I hope the best for Miles he is a quality guy. I have big doubts about him over coming the hamstring issues since it has been problem for him for quite a while.
Could be that they're being cautious with him given his injury history and the fact that they have their #1 guy with an impending 1 year suspension hanging over his head. I say that as I hope for the best for Miles.
The fan in me knows though that most likely he's already tweaked his weak hamstrings and that's why he's already having to sit out.
I'm so glad Austin is gone. The only reason he had so many hamstring issues is because he didn't do the right things in the off season. He didn't put in the effort. If you've paid attention, you've heard this before from people in the know.