The late Chicago baseball legend Minnie Miñoso was also known as “Mr. White Sox” and the “Cuban Comet.” Now he will be known, too, for a South Side school that newly bears his name. Minnie Miñoso Academy — the building formerly known as George McClellan Elementary, located just a few blocks west of Sox ballpark Guaranteed Rate Field — was celebrated Thursday with a back-to-school bash ahead of opening day in Chicago Public Schools on Monday.