Zach Stewart's sinker and slider were tumbling over the plate. He stood tall and stayed steady on the mound. The Minnesota Twins couldn't hit his pitches. The Chicago White Sox couldn't stop praising the rookie's composure. Stewart took a perfect game into the eighth inning and finished with a one-hitter as the White Sox completed a doubleheader sweep of the Twins with a 4-0 victory on Monday night.
