It has been suggested that a coronavirus vaccine would be needed for an international tennis tour to start again.

Novak Djokovic said he’s opposed to the idea of a mandatory coronavirus vaccine to resume international travel if the vaccine or requirement becomes an option.

“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 a live Facebook chat Sunday, according to 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.

“Hypothetically, if the season was to resume in July, August or September, though unlikely, I understand that a vaccine will become a requirement straight after we are out of strict quarantine and there is no vaccine