Given license to use his changeup more than ever before, White Sox reliever Keynan Middleton has racked up strikeouts and ground balls at career-best rates.
With a 2.33 ERA in 27 innings after picking up the save in the White Sox’ 4-1 victory Sunday against the Red Sox, the 29-year-old right-hander has emerged from a non-roster invite in the spring to a valuable setup man and possibly a trade target for rival teams at the deadline.
