A trio of GI Kentucky Derby contenders put in their final works ahead of next weekend's Run for the Roses. The only one of the three to work at Churchill Downs was GI Toyota Blue Grass S. winner Zandon (Upstart). Working on his own at 7:30 a.m. over a fast track with regular morning partner Kriss Bon aboard, the Chad Brown pupil completed the five furlongs in 1:00.40 (7/43). Churchill Downs clockers caught Zandon in fractions of :12.80, :25, :36.80, 1:00.40 and out in 1:12.80 and 1:26.40. "I just didn't...