Mercedes has been reassigned to Triple-A Charlotte, Daryl Van Schouwen of the Chicago Sun-Times reports.
Mercedes, all 5-foot-11 and 235 pounds of him, was a darling of spring training. Known for his big swing and exuberance, Mercedes hit .381 and launched four home runs. He was hoping to land a roster spot as the 26th man, but the White Sox are expected to go with someone more versatile when they break camp.