Novak Djokovic makes Roger Federer claim after Kei Nishikori retires from Australian Open

NOVAK DJOKOVIC claimed Roger Federer is the greatest player of all time after booking his Australian Open semi-final spot.

from Daily Express :: Tennis Feed https://www.express.co.uk/sport/tennis/1076492/Novak-Djokovic-Roger-Federer-Kei-Nishikori-Australian-Open-Rafael-Nadal-Stefanos-Tsitsipas
via Express