The White Sox recalled Leasure from Triple-A Charlotte on Monday.
Leasure was optioned nearly a month ago following a rough stretch in which he allowed six runs over his final 3.2 innings out of the bullpen prior to his demotion. He held a 2.52 ERA before the string of blowups, albeit with a 22:14 K:BB across 25 frames. Leasure is a candidate for high-leverage innings eventually but could be eased into such situations as he returns to Chicago's bullpen.