Martinez was recalled from Triple-A Reno on Wednesday, Nick Piecoro of The Arizona Republic reports.
Analysis: Martinez will provide a fresh arm for the bullpen after they were needed for six innings in Tuesday's win over the White Sox. The hard-throwing righty hasn't found his footing yet in the majors, giving up 13 runs over eight frames.
Justin Martinez Optioned to Reno
The Diamondbacks optioned Martinez to Triple-A Reno on Saturday.
Analysis: With Zach Davies (back) returning from the injured list, Martinez will end up being the roster casualty. The 22-year-old gave up six runs over 4.2 innings and picked up his first career save after he was recalled Aug. 17.
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