Bracho was optioned to Triple-A Reno on Monday.
The 24-year-old has pitched well across multiple stints with the Diamondbacks in June, having allowed one run on four hits and striking out six over seven innings of work. Bracho earned a spot on the Opening Day roster, but he's now been optioned to Triple-A six times in 2017. However, he likely remains near the top of the list for when Arizona need a fresh arm.