Animal Kingdom (picture), the first Kentucky Derby winner who never raced before on dirt, will try to claim the second leg of US horse racing’s Triple Crown today by winning the 136th Preakness. The three-year-old chestnut colt is a 2-1 betting favourite in a field of 14. Dialed In was made second favourite at 9-2 and would collect a North American record $6.1 million payout if he wins the Preakness, thanks to a $5.5 million sponsor bonus from winning major Triple Crown tune-ups, the Florida Derby and Holy Bull Stakes.