Miller (elbow) will undergo Tommy John surgery May 10, the Associated Press reports.
Miller, who was placed on the 60-day disabled list last Thursday, indicated over the weekend that he would opt for the season-ending procedure. Recent protocol for Tommy John rehabs has typically included a 14- or 15-month recovery timetable, according to Nick Piecoro of The Arizona Republic, making it unlikely that Miller will be back on the mound for the Diamondbacks until July or August of next season. With that in mind, Miller looks bound to open the 2018 campaign on the DL, which may make him little more than a late-round stash consideration in NL-only and deep-league drafts next spring. The Diamondbacks will replace Miller in the rotation with Triple-A Reno starter Braden Shipley, but the 25-year-old may need to pitch well to guarantee himself any outings beyond Thursday's turn against the Nationals.