The Diamondbacks optioned Troy to Triple-A Reno on Tuesday, Alex D'Agostino of SI.com reports.
Troy went just 1-for-8 with a run scored and three strikeouts in six games after coming off the injured list Sept. 6 and will now move back to the minors to make room for Jesus Sanchez, who was claimed off waivers from Toronto. Barring an injury to one of Arizona's position players, Troy is likely to play out the rest of the season at Reno.