We're on the cusp of the one-month mark to the GI Kentucky Derby and this Saturday marks the most important weekend of nine-furlong preps on the Triple Crown calendar, with significant stakes at Santa Anita, Keeneland, and Aqueduct. Next week the Top 12 expands to the Top 20 as the actual field begins to take shape. 1) CITIZEN BULL (c, Into Mischief-No Joke, by Distorted Humor) O-SF Racing LLC, Starlight Racing, Madaket Stables LLC, Stonestreet Stables LLC, Dianne Bashor, Determined Stables, Robert E. Masterson, Tom J. Ryan, Waves Edge Capital...