record of 33 Masters titles.
Since then, however, he has won Wimbledon and the US Open, taking his Grand Slam tally to 14, winning 20 consecutive tour-level matches for the sixth time, and 29 of his past 30 encounters.
Djokovic watched four break points, one of which Federer saved with a magnificent reflex volley, go by as he led 4-3 in the opening set, before saving a set point on his serve in the tie-break.
The 22-year-old Russian Federation defeated the 31-year-old Djokovic 7-5, 6-4, denying the Serbian superstar a chance to win his fourth tournament title in a row.
An inspired Karen Khachanov sensationally halted Novak Djokovic's 22-match winning run to claim the biggest title of his career at the Paris Masters.
Khachanov may have enjoyed his best week of career in the French capital after bettering No. 6 seed Dominic Thiem in their first meeting to reach a maiden ATP 1000 final. He deserves it. He's a young player... up-and-coming.
"I'll probably be able to speak more profoundly about it when the season is done and hopefully if I get to finish as No. 1".
"I'm happy with the way I'm playing". "If you keep maintaining the level what you play, I think that's the main reason why these matches actually I won".
But world number 18 Khachanov, a victor at the Kremlin Cup in Moscow last month, hit back in the very next game as Djokovic dragged a forehand into the tramlines, down break point. Five months ago, it was highly improbable considering my ranking and the way I played and felt on the court.
Still, the Wimbledon and U.S. Open champion has plenty to feel good about after a 22-match winning streak, and he remains favorite for the season-ending ATP Finals in London, beginning November 11.
Khachanov became the third different first-time victor of a Masters tournament this season - joining Juan Martin del Potro and John Isner - and will rise to a career-high ranking of 11th on Monday. What more can I ask for?
The 18th ranked Muscovite overpowered a third top-10 player in successive days, having hammered Alexander Zverev in the quarters and defeated John Isner in the last-16. "I'm always excited to play against him, particularly because it's been a long time [since we've played] and I feel I can just go out there and see what happens", Federer said.