Alexander Zverev defeated Novak Djokovic 7-6(7-4) 4-6 6-3 in the ATP Tour finals semi-final.
After winning the Paris Masters, Djokovic was hoping for his second consecutive event victory, and he was up against Zverev.
The two were competing for a chance to face Daniil Medvedev, the 2020 champion, who had beaten Djokovic in the US Open final in September.
Zverev went toe-to-toe with Serbia’s world number one, and the first set almost certainly ended in a tie-break as the two failed to gain an advantage.
The Russian won the first set 7-4, putting Djokovic on the back foot in the semi-final.
With his back against the wall in the second set, Djokovic knew he needed to win and broke his opponent late in the game to take a 5-4 lead and force a third set.
Djokovic won the second set, and Zverev broke his opponent to go 3-1 up in the third set, giving him a real chance to reach the final. He held his composure to go 5-2 up, just a game away, before securing an ultimately comfortable victory. For the first time in his career, Djokovic was unable to mount a comeback.