Well, it's happened: There's no more "Big Three" (and I don't think there ever was a "Big Four"), and Novak Djokovic just won the 2016 Australian Open to remove all doubt that he has risen to be the #1 tennis player in the world. And quite honestly, I don't see that changing anytime soon, short of a catastrophic event.
Between being six-years younger than a still-great but declining Roger Federer, and Rafael Nadal's frame giving way, there is nobody out there right now who is even close to Djokovic, and he is a legitimate threat to overtake Federer's record of 17 majors (after winning the Au