Montero recorded a save against the Twins on Thursday by striking out one batter in a perfect inning of work.
Closer Ryan Pressly (neck) went on the 15-day injured list Thursday afternoon, and Montero was given the first opportunity to close in his stead. The right-hander didn't disappoint, retiring the side in order on 16 pitches in the ninth inning. Montero is 8-for-10 in save chances this season, and he'll likely see a majority of Houston's closing opportunities for as long as Pressly remains out of action.