Arizona places right-hander Zac Gallen on the 15-day injured list due to elbow inflammation, according to reports. The decision sidelines the pitcher during a critical midseason stretch and affects the Diamondbacks’ scheduled pitching plans. Yahoo Sports notes that Gallen was originally expected to start the team’s final game before the All-Star break, but his assignment changes at the last minute after manager Torey Lovullo announces the update. The Winnipeg Free Press also reports the same IL move, citing elbow inflammation as the reason. Together, the accounts indicate that Gallen’s availability is limited for at least the next two weeks under the standard 15-day designation. Beyond confirming the IL placement and the underlying injury, the reports do not provide additional details such as the severity of the inflammation, a timeline for return beyond the IL window, or specific procedural or treatment steps. For now, the Diamondbacks must adjust their rotation to cover the period Gallen is out.