Complex sentence: He then was shipped from Dubai to the United Kingdom and was stabled at Newmarket to train for the Prince of Wales's Stakes at Royal Ascot, but was scratched a few days prior to the race due to a hoof bruise.
Split into simpler sentences: He then was shipped from Dubai to the United Kingdom and is stabled at Newmarket. He was anticipated to run in the Prince of Wales's Stakes at Royal Ascot, but was scratched a few days prior to the race due to a hoof bruise.