Roger Federer left to rue Rafael Nadal and Novak Djokovic success as rivals end record run - Express

Roger Federer left to rue Rafael Nadal and Novak Djokovic success as rivals end record run  ExpressNovak Djokovic on battling for year-end No. 1 spot  Tennis World USANovak Djokovic eyes 'very sharp start' in year-end No 1 battle with Rafael Nadal at ATP Finals  Tennis365ATP Finals: Rafa Nadal, Novak Djokovic battle for No. 1  Channel3000.com - WISC-TV3Tennis news - Youngsters will usurp Novak Djokovic, Roger Federer and Rafael Nadal, says Zverev &nbs