The other Baffert-trained horse has just as much or more talent than Dortmund, and owns a four-race winning streak. He was sired by 2009 Derby runner-up Pioneer of the Nile. He’s coming off an eight-length victory in the Arkansas Derby, his second race back after a left front foot injury that kept him out of last year’s Breeders’ Cup Juvenile. American Pharoah has a front-running style; the only time he had to come from behind, he finished fifth in his career debut. The worry about him is that the colt hasn’t been tested in his prep races. Victor Espinoza will be aboard a year after winning the Derby with California Chrome.