Can an Iowa-bred who sold for just $34,000 as a yearling, one who has never raced outside Prairie Meadows or in a graded stakes race, an Iowa-bred that is ridden by a female apprentice jockey and named for an 8-year-old who has been battling leukemia win a Breeders' Cup race? We are about to find out. Tyler's Tribe (Sharp Azteca) may not be the best 2-year-old in training, but no juvenile anywhere this year has thrashed his competition to the extent that this gelding has. After winning last Saturday's Prairie...