LOUISVILLE, Ky. - A range of emotions rolled through the Churchill Downs stable area on Tuesday morning for trainers associated with this year's Kentucky Derby, from a dejected Doug O'Neill, who announced Square Eddie was injured anew, to the quiet confidence of Jeff Mullins after I Want Revenge turned in his final workout, to the joy of trainer Kelly Breen, who through a surprising confluence of events looked like he would have a second runner in the race.