The Arizona Diamondbacks bolstered their roster ahead of a critical series against the Kansas City Royals by placing Ryan Thompson on the 15-day injured list due to a scapular strain. Thompson had been a reliable option, allowing only two runs over 17 appearances since May 23. In response, the Diamondbacks recalled Bryce Jarvis from Triple-A Reno, providing additional depth in the bullpen.

Starting pitcher Anthony DeSclafani is set to make his debut for the Diamondbacks, having transitioned from the San Francisco Giants. He had a shaky start to the season but can offer a fastball averaging 94.1 mph, complemented by a strong slider. Meanwhile, the Royals will counter with Michael Lorenzen, who has struggled recently with a 6.88 ERA in his last seven starts.