Henry was optioned to Triple-A Reno on Friday.
After giving up five earned runs over 4.1 innings Wednesday against the Padres, the D-backs decided to send Henry back to the minors -- likely for the rest of the season. The 25-year-old southpaw recorded a 5.50 ERA and 1.53 WHIP over 36 innings for Arizona. Taylor Widener will return to the majors in a corresponding move.