Court Concentration Marine Corps veteran Tisha Knickerbocker plays in a wheelchair basketball preliminary match during the 2018 Department of Defense Warrior Games at the U.S. Air Force Academy in Colorado Springs, Colo., June 3, 2018. Marine Corps photo by Sgt. Drew Tech SHARE: Download: Full Size (3.78 MB) Credit: Sgt. Drew Tech VIRIN: 180603-M-GX711-0073C.JPG Photo Gallery