Joker in Flushing Meadows is not the same as his versions in Melbourne and at the All England Club: almost unbeatable, at least for the moment.
The Serb in NY is still a great player, after all he is the tennis player with the most finals there in the Open Era, but he does not have or feel the same confidence as in those two places.
He usually goes from more to less, the rivals there are not afraid of him as in his favorite places, and in the final, Djokovic's level is nothing to write home about, he is beatable and vulnerable.
I would like him to be able to play to see him defeated again at the US Open one more time but if he doesn't play, at the same time, the sport is, has been and always will be much bigger than a family name.