Burdi was recalled from the White Sox's alternate training site Saturday.
Burdi has been limited over the past two seasons while recovering from Tommy John surgery and a dislocated knee, but he'll join the major-league bullpen for the first time to help bolster the bullpen. The 2016 first-round pick was thought to be major-league ready in 2017 prior to his injuries. The right-hander posted a 5.70 ERA and 40:18 K:BB over 30 innings across 28 appearances (one start) in the minors over the past two seasons.