Novak Djokovic stormed onto the scene when he won the 2008 Australian Open. Many people thought that would open a floodgate of major titles for the young Serb.
Surprisingly, Djokovic hit what some would call a slump. He continued to make deep runs in big tournaments but couldn't break through on the big stage. Everything would be fine until he ran into a top opponent. He would squander chances left and right, never seeming to play at his best.
In the semifinals of the 2010 US Open, Djokovic gutted out a hard-fought, five-set victory over Roger Federer. This may be looked back at as the defining moment of Djokovic's career.
He had only beaten Federer in a Grand Slam once before, and that was in the 2008 Australian Open. Since that win, Federer had owned him on the big stage.
If Djokovic lost the US Open match to Federer, this would be a completely different story. With the win, Djokovic collected the confidence of a champion-to-be.
That brings me to this: What are seven things that imply Djokovic has crossed the line from really good to great?