[Mariebl]

The most depressing part of it is that he’ll probably heal just enough to run in the Belmont, win, and then be promptly retired, to pass on cracking hoofs to all his offspring.

[gate2wire]

I will enthusiastically bet against him now.
Really quite a shame. He is special.
His sire only ran 7 times. Wonder if he had the same issue.

[firewalk]

to pass on cracking hoofs to all his offspring.

Is there also a genetic predispostion to this?
I've seen it caused by various other things.