Before they got to the World Series, they played at Dreams Park By CHARLIE VASCELLARO • Special to www.AllOTSEGO.com For almost three decades, youth baseball players from all over the country have been chasing their big-league dreams all the way to Cooperstown’s Dreams Park, and this year’s 2021 Major League World Series represents the physical manifestation of those dreams coming true. More than 500 Dreams Park alumni have made it to the big leagues and seven of them are members of this year’s Houston Astros and Atlanta Braves World Series combatants.…