Big Comeback?

Big Brown beat a mediocre field by a tiny margin to 'return victoriously' to racing Sunday. Is he really a superhorse that had one off day? Will he really race again before the Breeders Cup? Will he even start in the Breeders? Will more losses affect his worth?

I guess we'll have to stay tuned for all those answers. Right now, I just want to know if he's back on steroids.