Arizona optioned Fernandez to Triple-A Reno on Monday.
After two weeks with the big-league club, the Diamondbacks are sending Fernandez back to Triple-A. Over his last seven games in the majors, the 22-year-old slashed .267/.389/.267 over 18 plate appearances. Arizona needed to clear a roster spot for Ketel Marte (knee) in his return from the 10-day injured list.