In a column for BBC the six-time Grand Slam winner Boris Becker commented on Alexander Zverev winning the ATP Finals in London after defeating Novak Djokovic in the final. Becker believes that Zverev's success at the highest level has just started: 'We've been talking about the next generation for a couple of years now and Zverev is the best of the lot,' said Becker. 'He showed it last year by reaching the number three ranking in the world and following it up this year by winning another Masters title in Madrid.
He has played consistent tennis throughout the year and will now finish it as number four in the world. 'Winning the ATP Finals is a big step for him, now doing it over five sets at the Australian Open in January, and then the other Grand Slams, is where it really matters.
His mental resilience was impressive against Novak, as was his staying power. After breaking Novak's serve he had to serve out for the first set - and hit three aces. That showed his mental strength. Nobody can stay with Novak normally in long rallies but Sascha did and that frustrated Novak.
Now he has to do this consistently in five-set matches at the Grand Slams.' Zverev will now enjoy a much-deserved rest relaxing in Dubai and Maldives before coming back to Monte Carlo and starting training again, especially on his fitness, ahead of the Hopman Cup in Perth.
This year the 21-year-old also won titles in Munich, Madrid and Washington. He reached his maiden Grand Slam quarter-final at the French Open losing to Dominic Thiem. ALSO READ: Alexander Zverev explains how Ivan Lendl helped him to beat Novak Djokovic