Denmark's Holger Rune celebrates with this trophy after defeating Serbia's Novak Djokovic (left) in their Paris Masters final at the Accor Arena, Sunday, Nov. 6, 2022 in Paris. Rune won 3-6, 6-3, 7-5. (THIBAULT CAMUS / AP)

PARIS - Danish teenager Holger Rune fought back from a set down to beat hot favourite Novak Djokovic 3-6 6-3 7-5 and win his first Masters title in Paris on Sunday.

I'm not happy that you (Holger Rune) beat me, but on the other hand I'm happy for you because I like your personality, you're a very dedicated guy who loves tennis ... You've put in a lot of hours of hard work, it's paying off for you and your future is bright.

Novak Djokovic, Serbian professional tennis player

Rune, who beat four other top-10 players in Hubert Hurkacz, Andrey Rublev, Carlos Alcaraz and Felix Auger-Aliassime en route to the final, will now move into the top 10 when the new rankings are published on Monday.

"I'm not happy that you beat me, but on the other hand I'm happy for you because I like your personality, you're a very dedicated guy who loves tennis," Djokovic said with a smile at the trophy presentation.

"You've put in a lot of hours of hard work, it's paying off for you and your future is bright."

Rune said beating Djokovic in the Masters final was the icing on the cake in a week where he bagged his first Masters title and became the first Danish man to crack the top 10 of the ATP rankings.

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"To beat Novak. To be able to beat him in such occasion ... in the final is probably the best feeling of this whole week," said Rune, who defeated Hubert Hurkacz, Andrey Rublev, Carlos Alcaraz and Felix Auger-Aliassime en route to the title clash.

Denmark's Holger Rune returns the ball Serbia's Novak Djokovic during their Paris Masters final at the Accor Arena on Nov 6, 2022 in Paris. (THIBAULT CAMUS / AP)

"It was also important for me to beat Felix and Alcaraz and these guys. But still, to be able to beat Novak ... he's probably one of the greatest we have ever had in this sport.

"It's a crazy feeling."

Rune looked down and out when six-times Paris champion Djokovic produced a near-flawless opening set, with the Serbian virtually unstoppable on his first serve as the 19-year-old struggled with unforced errors.

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But the tables turned in the second set when Rune broke early and the young Dane took confidence from that to react well under pressure, using his serve and two-handed backhand to good effect to force a decider.

Serbia's Novak Djokovic (top) stretches to return the ball to Denmark's Holger Rune during their Paris Masters final at the Accor Arena, Nov 6, 2022 in Paris. (THIBAULT CAMUS / AP)

You're (Novak Djokovic) one of my favourite players, I've watched you since I was a kid. It's a pleasure to share the court with you ... I really enjoyed my time at the tournament here and I can't wait to be back here next year.

Holger Rune, Danish professional tennis player

In the final set, Djokovic raced to a 3-1 lead but Rune quickly broke back, with the Serbian calling for a physio during a changeover to check on his thigh before the Dane levelled the set at 3-3.

After winning a break to go up 6-5, Rune served for the title but Djokovic put up a resolute defense as the 12th game stretched on for more than 17 minutes, with the crowd rising to their feet many times to applaud some engrossing rallies.

But Rune, who saved three match points in the first round to beat Stan Wawrinka, found a reserve of energy to save six break points before he sealed victory when Djokovic found the net, and he fell to the ground in relief.

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"You're one of my favourite players, I've watched you since I was a kid. It's a pleasure to share the court with you," Rune said.

"I really enjoyed my time at the tournament here and I can't wait to be back here next year."

Rune, who climbed to world number 10, withdrew from the Next Gen ATP Finals and will now head to Turin as the first alternate at the season-ending ATP Finals, which begins on Sunday.