US Open Says Novak Djokovic Can't Play if He's Not Vaccinated Against COVID

NBC News reports that on July 20, the U.S. Open said that even though it doesn't have its own vaccine mandate it will heed the American government's guidance pertaining to unvaccinated non-U.S. citizens who enter the country. Currently, non-citizens are required by the U.S. government to be fully vaccinated against COVID prior to entering the country.