ジャクソン・ジェネラルズ
On May 28, 2018, Ladendorf was traded to the Arizona Diamondbacks in exchange for cash considerations. He spent the remainder of the season split between the Double-A Jackson Generals and the Triple-A Reno Aces, notching 34 hits in 43 games between the two. He elected free agency on November 3, 2018.