Roger Federer outclasses Novak Djokovic to reach ATP Finals in London

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. Howeve...