Kannouchi will be injurred, so there's a good chance he won't be an alternate anyways.
He says he has a difference between leg lengths... and that this was the reason for a size difference between his opposing hamstring and quads
He was pushing with one leg and overstiding with the other, this is the reason for him needing orthodics and for his injuries, case closed.
Hall's form was awesome.
Ritz was dorsal flexing before landing, which may lead to more inuries
Sell's form was tired at the end, not lifting on time, but he was still good, not pushing or overstriding.
I predicted Hall, Meb, Sell based on mechanics shown in pre race videos. I'm suprised with Meb!