Novak Djokovic did not get vaccinated and he suffered a lot of consequences this year, missing two grand slam events where he would have been favoured to win.
Not only did it alter tennis history forever but it also could impact his legacy which is quite iconic even now. There is no reason for Djokovic not to make it bigger and better however taking the vaccine was not something he was willing to do even though he understood what would happen if he didn't.
He asked about it at the Laver Cup and he gaev a brief resposne explaining that he doesn't have any regrets:
"No, I don't have any regrets. I mean, I do feel sad that I wasn't able to play, but, you know, that was decision that I made. You know, I knew what the consequences will be, so I accepted them. That's it."
He then added:
"I mean, I congratulate Alcaraz for winning US Open. He did it in an incredible fashion, you know, in three or four five-setter matches in the tournament. He's 19 years old and already No. 1 in the world. I mean, it's quite amazing what he has achieved so far. He's, I think, a great addition to our sport, a great star in making. Well, he's already a Grand Slam champion, so we can't speak about him as future, because he's already a present."
The Serbian will take part in the Laver Cup this week where he will play alongside some of his biggest rival including Roger Federer, Rafael Nadal and Andy Murray.