LOUISVILLE, Ky. -- Todd Pletcher has established himself in the trenches in Louisville, and Friday morning, the troops were at work. Pletcher, who will have a string at Churchill Downs throughout this upcoming meeting, sent out Wood Memorial winner Mo Donegal and Florida Derby runner-up Charge It out for their penultimate breezes for the Kentucky Derby, after earlier in the morning working a trio of candidates for the Kentucky Oaks.