Swimmer Michael Phelps, the all-time leader in career Olympic medals with 22, will carry the United States flag for the Opening Ceremony in Rio de Janeiro, the USOC announced Wednesday. Phelps, who has won 18 gold medals, was chosen for the honor in a vote of Team USA athletes. It will be his fifth Olympics since making his debut at the 2000 Games in Sydney, Australia. Read more http://www.espn.com/olympics/story/...y-us-flag-opening-ceremony-2016-olympic-games