Didn't see any update on here about Clarke, so...
I don't know all the medical details or exactly what happend, but just spoke with Mike and he did break a bone(s) in his back at the Masters. Sounds like the break is "not bad" as far as backs go, and he will be back to normal in one to two months. Get well Mike.
Please drop him a note here as I am sure he would appreciate the support and stoke...