U.S. Marine Corps Staff Sergeant Jacob Rich prepares to practice for the 100m Men's Wheel event for the 2014 Invictus Games at Mayesbrooks Training Center in London, Sept. 10, 2014. The Invictus Games is an opportunity for wounded, ill, and injured service members from around the world to recover and rehabilitate through competing in adaptive sports. - U.S. Marine Corps Staff Sergeant Jacob Rich, an adaptive athlete,prepares to practice for the 100m Men's Wheel event for the 2014 Invictus Games at Mayesbrooks Training Center in London, Sept. 10, 2014. The Invictus Games is an opportunity for wounded, ill, and injured service members from around the world to recover and rehabilitate through competing in adaptive sports.