LOUISVILLE, Ky. – Both the likely field, and perhaps even the likely favorite, for the 139th Kentucky Derby on Saturday at Churchill Downs came into sharper focus Monday, when Code West, Govenor Charlie, Tiz a Minister, and Winning Cause all were officially taken out of consideration for the Derby, and Florida Derby winner Orb turned in an eye-catching workout that, combined with his improving form, may propel him to favoritism over the heretofore acknowledged favorite, the unbeaten Verrazano.