Shaw elected to become a free agent Saturday.
Shaw went unclaimed off waivers after being designated for assignment Friday, and he will exercise his right to refuse an outright assignment in order to become a free agent. The 36-year-old righty posted a 4.53 ERA and 1.37 WHIP across 49.2 innings during his time with the White Sox, though he got off to a slow start with the team this year before being DFA'd, giving up four runs over four frames.