Single Serve U.S. Air Force Academy's Ksenia Vasilyev prepares to serve a ball during a tennis match at the academy in Colorado Springs, Colo., April 2, 2021. SHARE IMAGE: Download Image: Full Size (0.32 MB) Tags: Air Force Photo By: Sarah Goldblum, Air Force VIRIN: 210402-F-YV474-1013C.JPG Photo Gallery