The temperatures were on the cool side Saturday in Central Kentucky, but jockey Joel Rosario was hot. As in en fuego. The Dominican sensation had ridden, in succession, Flagstaff (Speightstown) to victory in the GIII Commonwealth S.; Bound For Nowhere (The Factor)--who was drawn somewhere in the middle of Versailles Road--to win the GII Shakertown S.; and produced 'TDN Rising Star' Malathaat (Curlin) at just the right time to snatch the GI Central Bank Ashland S. Rosario completed a spectacular stakes four-timer in the day's penultimate race, riding Ten Broeck...