Sham did not injure himself in the Belmont. At least, he did not have any discernible problem and kept training. In the summer he was found to have a cannon fracture and retired.
I’ll defer to you on that, I was working off of always dubious wikipedia. But it did reference a piece you will probably enjoy:
https://web.archive.org/web/20180617222643/http://www.firstandmonday.com/a-crying-sham/