FILE - In this Monday, Feb. 24, 2014 file photo, People stand under a set of Olympic Rings as they watch the sun set over the Black Sea a day after the close of the 2014 Winter Olympics, in Sochi, Russia. U.S. athletes trying to make the Winter Olympics will have to be fully vaccinated for COVID-19 under a groundbreaking new policy announced Wednesday, Sept. 22, 2021 by the U.S. Olympic and Paralympic Committee.(AP Photo/Charlie Riedel, File)

FILE - In this Dec. 1, 2020, file photo, the Olympic Symbol is reinstalled after it was taken down for maintenance ahead of the postponed Tokyo 2020 Olympics in the Odaiba section in Tokyo. U.S. athletes trying to make the Winter Olympics will have to be fully vaccinated for COVID-19 under a groundbreaking new policy announced Wednesday, Sept. 22, 2021 by the U.S. Olympic and Paralympic Committee. (AP Photo/Eugene Hoshiko, File)