Garza allowed one run on four hits and a walk with three strikeouts in two innings during Sunday's 5-2 loss to the White Sox.
The right-hander has covered more than one inning in just two of his seven September appearances. Garza has logged a 4.23 ERA, 1.52 WHIP and 28:17 K:BB across 27.2 innings to begin his big-league career. The 27-year-old will likely remain in a low-leverage role to finish the season, although he's made noticeable improvements after a few rough patches in July and August.