Any word on jockey Frank Alvarado in the 11th Stakes at Pleasanton?

[Pedigree Ann]

Sometimes they (horses and jockeys) get the wind literally knocked out of them and can't move until they get their breath back. I've seen steeplechasers who haven't moved for several minutes (and everyone has feared the worst) suddenly lurch to its feet, give a little shake, and walk off none the worse for wear.