ARCADIA, Ca. -- Confusion reigned at Santa Anita Friday morning after a California Horse Racing Board (CHRB) memo was texted to trainers Thursday evening which read, "Horses entered to race shall only be given water, hay, and grain until post time," and that, "no drugs, medications, or substances shall be administered to a horse after it is deemed entered to race." The link in the text pointed to a letter from the CHRB dated Feb. 27, which read, "The following amendments to the CHRB Rules and Regulations were approved by the...