The White Sox optioned Martin to Triple-A Charlotte on Thursday, Daryl Van Schouwen of the Chicago Sun-Times reports.
The right-hander has struggled with a 5.25 ERA in 12 innings of Grapefruit League action. That said, Martin did post a respectable, albeit unimpressive 4.83 ERA and provided rotation depth last season, so he's a likely bet to rejoin the White Sox at some point in 2023.