Top-ranked Novak Djokovic extended his winning streak to six matches with a 7-6 (4), 6-2 victory over Casper Ruud on Monday to open his campaign at the ATP Finals.
Djokovic begins pursuit of record-tying 6th title of season with win at ATP Finals
Top-ranked Novak Djokovic extended his winning streak to six matches with a 7-6 (4), 6-2 victory over Casper Ruud on Monday to open his campaign at the ATP Finals.
