The field for the historic 150th Preakness Stakes is beginning to take shape with several contenders confirmed and others on the cusp. Sandman, trained by Hall of Famer Mark Casse, will return after a troubled Kentucky Derby trip, while River Thames, Gosger, and Journalism are among those working toward big performances. Veteran trainer D. Wayne Lukas plans to send American Promise despite a rough Derby showing, highlighting the unpredictable nature of the second jewel in the Triple Crown. With promising workouts and determined connections, anticipation builds for an electric day at Pimlico.