Another horse has scratched out of the 151st Kentucky Derby.Grande is out due to a foot bruise, according to Churchill Downs.The 3-year-old horse is trained by Todd Pletcher and jockeyed by John Velázquez. This was Pletcher's only horse in the race.With no alternates left, the field is now set at 19 horses.Grande had the No. 10 post position. All the horses keep their numbers, but all behind him will now slide up another post position.Rodriguez, the No. 4 horse trained by Bob Baffert, scratched on Thursday.