Invictus Spirit Australia’s Trent Serafini, left, flips in his wheel chair as a U.S. team member attempts to keep him upright during their semi-final wheelchair rugby match at the 2016 Invictus Games in Orlando, Fla., May 11, 2016. Air Force photo by Senior Master Sgt. Kevin Wallace SHARE: Download: Full Size (1.48 MB) Credit: Senior Master Sgt. Kevin Wallace VIRIN: 160511-F-WU507-065A.JPG Photo Gallery