The Diamondbacks optioned Diaz to Triple-A Reno on Monday, Alex Weiner of ArizonaSports.com reports.
Diaz has tossed 3.2 innings this spring, but he's far down in the Arizona rotation pecking order. The 24-year-old has some of the best stuff among Diamondbacks pitching prospects, but whether or not he'll be able to remain a starting pitcher will depend on his ability to throw enough strikes.
The Diamondbacks optioned Diaz to Triple-A Reno on Thursday.
Diaz made three appearances for the Diamondbacks after being recalled from Triple-A on Sept. 12, during which he allowed three earned runs over 8.1 innings while striking out five batters and walking four. He and Blake Walston will now be sent back to the minors as Alek Thomas comes up from Reno and Ryne Nelson (shoulder) returns from the IL.
The Diamondbacks recalled Diaz from Triple-A Reno on Thursday, Jesse Friedman of GoPHNX.com reports.
Diaz had four starts for the Diamondbacks in July, and he notched a quality start in the first two. In the third game he surrendered seven earned runs across three innings, but he bounced back in his final outing July 28 by allowing just one hit in five scoreless frames before returning to Triple-A. The right-hander worked out of the bullpen in his last two outings with Reno and should serve as a long reliever while up with the big club.
