The Diamondbacks outrighted Hughes to Triple-A Reno on Aug. 2.
Arizona previously optioned Hughes to Triple-A on June 29, only to move him off the 40-man roster entirely just over a month later. Since being sent back to Reno in late June, Hughes has accrued a 1.26 ERA, 1.40 WHIP and 17:4 K:BB over 14.1 innings.