Sgt. Preston Griffall of the U.S. Army World Class Athlete Program will make his second Olympic appearance in luge doubles at the 2014 Olympic Winter Games in Sochi, Russia. He will team with WCAP teammate Sgt. Matt Mortensen. They could also compete in the luge team relay, an event that will make its Olympic debut at the Sochi Games. U.S. Army photo by Tim Hipps, IMCOM G9 MWR Public Affairs