Win or lose next week at the ATP World Tour Finals, the debate is over. This is Novak Djokovic’s finest season, even better than his annus tremendous in 2011, when he stretched his limits to pass the two men who had dominated the game: Roger Federer and Rafael Nadal.
The most important numbers look the same. In 2015, as in 2011, Djokovic won 10 titles and three of four Grand Slam tournaments, losing the French Open where a deeply aggressive and inspired Swiss performance was required to stop him. In 2011, it was Federer in the semifinals.