No John, It's NO DJOK (ovic) "John McEnroe: 'It's a joke' tennis star can't compete at U.S. Open over vax status "

"Djokovic won't be able to participate due to Biden administration rules that still insist anyone traveling to the United States must show proof of vaccination before boarding a flight entering the country..."

https://www.wnd.com/2022/08/john-mcenroe-joke-novak-djokovic-cant-compete-u-s-open-vax-status/