Djokovic 'extremely proud' to beat Graf's ranking record

Novak Djokovic broke the record for the most time spent at No 1 in the professional tennis rankings by a man or woman, beginning his 378th week in the ATP's top spot on Monday to surpass Steffi Graf's 377 leading the WTA.

RANKINGS. Novak Djokovic to beat Steffi Graf's record - Tennis Tonic - News, Predictions, H2H, Live Scores, stats

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