NEW YORK -- The anticipation of a Triple Crown try was building as Kentucky Derby winner Animal Kingdom was closing in on Shackleford in the final yards of the Preakness Stakes.The colt's gallant bid, however, came up short -- by a mere half length. So instead of being energized by another attempt to end a 32-year Triple Crown drought, the racing world is looking at something less compelling but intriguing nonetheless in next Saturday's 143rd Belmont Stakes: Derby winner vs. Preakness winner."Obviously, it's a whole different ballgame when there's a Triple Crown on the line, but we have no control over that," says Dan Silver, the New York Racing Association's communications director. "There's still plenty to get excited about with an anticipated rubber match. That doesn't happen very often, and this year's could be even better than most because of how closely matched Animal Kingdom and Shackleford appear."