Interesting, the Telegraph just posted an update about Djokovic's future travel issues:
"Most countries require visa applicants to disclose if they have ever been deported or had a visa rejected or cancelled.
While France's sports minister said last week that Djokovic would be allowed to play at the Roland Garros even if unvaccinated, citing International Tennis Federation protocols, President Emmanuel Macron's said he wants to make the lives of the unvaccinated so complicated they will end up getting jabbed.
The French Tennis Federation said it was still too early to reveal health protocols.
And Wimbledon's organisers are also yet to decide safety arrangements for the major.
The Lawn Tennis Association said entry requirements for its events would be determined by the government, and that, currently, non-vaccinated people could enter the country but must self-isolate for 10 days.
A US Open representative said the tournament would follow New York City Department of Health guidelines.
Flying into the United States could also be an issue for Djokovic. Foreign air travellers have had to be fully vaccinated since November and provide proof before boarding flights, with limited exceptions."
It looks like he will likely be okay for the French Open and Wimbledon but I think he's in serious danger of not being eligible for the US Open.