Cecconi is listed as Arizona's probable starting pitcher for Wednesday's game against San Francisco.
The Diamondbacks will formally call Cecconi up from Triple-A Reno later Wednesday for what will be his MLB debut. The 24-year-old right-hander has toiled in the hitter-friendly Pacific Coast League this season, posting a 6.38 ERA and 1.38 WHIP over 20 starts (103 innings). Cecconi is joining the rotation as a replacement for the injured Tommy Henry (elbow), who may spend more than the minimum 15 days on the shelf.