Saturday's GI Whitney S. lost some of its appeal when two-time G1 Dubai World Cup hero Thunder Snow (Ire) (Helmet {Aus}) was scratched sick, depriving fans of a battle with 'TDN Rising Star' McKinzie (Street Sense) in the 'Win and You're In' qualifier for the GI Breeders' Cup Classic at Santa Anita the first weekend in November. Though that clash is on hold for the next eight weeks, McKinzie upheld his end of the bargain, getting a thinking-man's ride from Hall of Famer Mike Smith before holding off a late...