The White Sox selected Palisch's contract from Double-A Birmingham on Friday.
Palisch has yet to make his MLB debut. In 15 outings (seven starts) at Double-A, he owns a 1.19 ERA and 35:14 K:BB across 53 innings. Palisch started the season as a reliever but is now fully stretched out. With scheduled starter Davis Martin (forearm) landing on the injured list, Palisch could factor into Chicago's pitching plans Friday.