https://www.nytimes.com/2020/04/20/sports/tennis/coronavirus-djokovic-vaccine-covid19.html
“Personally I am opposed to vaccination and I wouldn’t want to be forced by someone to take a vaccine in order to be able to travel,” Djokovic said in comments reported and translated Sunday by Reuters. “But if it becomes compulsory, what will happen? I will have to make a decision. I have my own thoughts about the matter, and whether those thoughts will change at some point, I don’t know.”