Is Borel shut out of the Derby?

Looking at the likely top 20 there does not seem to be a mount for Borel. Only Stay Thirsty seems to need a jockey and that is only if Ramon Dominguez lost the mount and Velasquez would get it if Uncle Mo can't go.

Ironically Castellano may have taken his last shot getting the mount over Borel on Silver Medallion this weekend.