Swiss Roger Federer beat Novak Djokovic of Serbia to reach the semi-finals at ATP World Tour Finals in London.
Third seed Federer defeated second seed Djokovic 6-4, 6-3 in 73 minutes. On the other hand, world number one Spaniard Rafael Nadal missed out on a place in the last four as defending champion Alexander Zverev claimed the remaining semi-final
spot.
Nadal, who beat Stefanos Tsitsipas in the afternoon session, needed Daniil Medvedev to beat Zverev to secure a place in the last four. However, Zverev came through to eliminate Nadal and set up a meeting with Dominic Thiem.
Now, Tsitsipas will face Roger Federer in the other semi-final today.