LEOMINSTER — Sebastian “Seb” Gruszecki spent much of last summer on the field for the Worcester Bravehearts.But unlike the previous two summers, it wasn’t in uniform as a starting pitcher for the Futures Collegiate Baseball League team.Rather, Gruszecki, typically dressed in a two-toned Bravehearts polo shirt, khaki shorts and white Nikes, helped with on-field contests between innings and roamed the stands enthusiastically encouraging young fans to show […]