Top-ranked Novak Djokovic has extended his winning streak to six matches with a 7-6 (4), 6-2 win over Casper Ruud to open his campaign at the ATP Finals
Top-ranked Novak Djokovic has extended his winning streak to six matches with a 7-6 (4), 6-2 win over Casper Ruud to open his campaign at the ATP Finals