Trainer Robertino Diodoro on Sunday began serving a 15-day suspension for three medication positives incurred at Turf Paradise during the winter.
Diodoro had three horses test positive for hydroxyethylpromazine sulfoxide, a tranquilizer that the Association of Racing Commissioners International lists as a Class 3 drug. The medication was found in the post-race urine samples of Cable Jett after he finished last as the favorite in an allowance race on Jan. 17; Warren’s Nicholas, after he won a $5,000 claimer on Jan. 24; and Ship Rock, who won a $3,000 claiming race on Feb. 12.