The White Sox selected Shaw's contract from Triple-A Charlotte on Wednesday, Daryl Van Schouwen of the Chicago Sun-Times reports.
Shaw re-signed with the White Sox on a minor-league pact after holding a 4.14 ERA and 40:17 K:BB in 45.2 innings last season. The veteran reliever could even find himself in the late-inning mix as manager Pedro Grifol tries to make sense of a patchwork bullpen.