Heston was recalled from Triple-A Tacoma and will draw the start for Sunday's game against the White Sox, Shannon Drayer of 710 ESPN Seattle reports.

EDGE Analysis

With the Mariners' starting rotation in absolute ruins due to numerous injuries, Heston will be called upon to take the mound Sunday against the White Sox. The righty has made six starts with Triple-A Tacoma this season, posting a 3.41 ERA and 1.17 WHIP over 31.2 innings. The White Sox have struggled against right-handed pitching this season, posting a collective .679 OPS against righties, which is good for fourth-worst in the majors.