Five contenders took advantage of a mild, dry Sunday morning in Louisville to put in final works at Churchill Downs ahead of next weekend's GI Kentucky Derby. First of the group to work was BC Stable's Just Steel (Justify), who went out just as the track opened at 5:15 a.m. Sunday. The bay colt worked four furlongs in :50.40 (52/60), registering splits of :13.40 and :25.20 before being eased up on the gallop out. "Just a slow maintenance work. We're close to the race, we didn't want to do much,"...