The first Saturdays in February, March and April are stacked with points-awarding prep races for the GI Kentucky Derby. It's unusual, though, for all of the coast-to-coast stakes on any one of those weekends to yield three emphatic or impactful performances. But the trio of preps on Feb. 1 produced three intriguing winners who all figure to be "horses of interest" moving forward. The victories Saturday by Citizen Bull (Into Mischief) in the GIII Robert B. Lewis Stakes at Santa Anita, 'TDN Rising Star' Captain Cook (Practical Joke) in the...