Boris Becker split with Novak Djokovic exactly two years ago, in December 2016, after winning six Grand Slam titles together. At the time, Becker had understood that something was not right on the Serbian player's mind.
In an interview to the New York Times, Becker said: 'I felt deep down that he was a little bit burned out after winning so much for years. He’d just had enough. He just needed some time for himself and his family to take a breather.
It’s natural, and he didn’t do that, not for a while.' Djokovic started the 2017 in a disappointing way losing to Denis Istomin in the second round at the Australian Open, and then, ended the season in July after retiring against Tomas Berdych in the Wimbledon quarter-finals due to an elbow injury.
Kei Nishikori faced Djokovic at this year's US Open semis, losing in straight sets. On the world no. 1's comeback, one of Nishikori's coaches, Dante Bottini, said: 'Novak’s back at an amazing level, hitting the ball very deep and hitting his spots so well with the serve.
Kei didn’t play his best game today, but he came up with some very good shots, and Novak came up with the same or better. But I still think the final is going to be very tough.' Djokovic will start the new season in Doha.