Uncle Mo and Boys At Tosconova certainly bring star power to this year’s $2 million Breeders’ Cup Juvenile. It remains to be seen how much depth there will be to this year’s field.The connections of several good 2-year-olds have yet to commit to the Juvenile. That list includes J.B.’s Thunder, the front-running winner of the Grade 1 Breeders’ Futurity, and To Honor and Serve, a very good-looking maiden winner at Belmont Park.