The White Sox are expected to recall Iriarte from Double-A Birmingham on Sunday, James Fegan of SoxMachine.com reports.
Iriarte, a 22-year-old right-hander, will come up to fill one one of the two openings on the expanded September roster. He is expected to work mostly out of the bullpen after working primarily as a starter at Double-A. Iriarte has gone 5-7 with a 3.71 ERA, 1.28 WHIP and 122:57 K:BB across 126 innings for Birmingham this season.