Roger Federer is already through to the World Tour Finals semis regardless of Thursday’s round-robin outcome against Kei Nishikori. For Nishikori, who is 1-1 through two matches, a win is absolutely essential to his tournament hopes.
Roger Federer and Kei Nishikori will be squaring of for sixth time in their careers and for the first time since this same tournament last year when they clash on the final day of round-robin action at the World Tour Finals on Thursday afternoon.
Federer is leading the head-to-head series 3-2 after getting the best of Nishikori 6-3, 6-2 at the O2 in 2014. The 34-year-old Swiss has won two of their three previous hard-court meetings, including two of two indoors. He also prevailed 6-1, 6-3 in front of his home fans in the 2011 Basel final. Nishikori pulled off upsets on the clay courts of Madrid in 2013 and one season later on…
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