ATP World Tour Finals - Nishikori Beats Federer; Anderson Stops Thiem on Day One (November 11, 2018) Seventh seed Kei Nishikori ended No. 2 seed Roger Federer’s hopes of reaching year-end No. 2 by taking down the Swiss 7-6(4) 6-3 in their round-robin opener of the ATP World Tour Finals on Sunday in London’s O2 Arena. Federer, became fed-error near the end of the first … [Read more...] about ATP World Tour Finals – Nishikori Beats Federer; Anderson Stops Thiem on Day One