Novak Djokovic's wait for a record 25th Grand Slam singles title goes on after teenage star Joao Fonseca produced a stunning fightback to win a five-set epic in the French Open third round.

The Serb was the only player left in the draw who had won a major title and was arguably the favourite to go all the way after world number one Jannik Sinner lost on Thursday.

But after winning the first two sets, Djokovic was gradually overpowered by 19-year-old Fonseca, who hit back to force a decider.

In front of a raucous crowd, Fonseca battled back from 3-1 down in the fifth set to win 4-6 4-6 6-3 7-5 7-5 after a gruelling four hours and 53 minutes.

Fonseca is the first teenager to beat the Serb at a major - a testament to the coolness he showed under pressure against one of the game's all-time greats.

It is only the third time in 22 appearances that Djokovic has failed to reach the second week at Roland Garros.

With Sinner out and Carlos Alcaraz skipping the clay-court major because of injury, Djokovic, who has not added to his tally since lifting the 2023 US Open, will be left wondering whether his best opportunity of winning that elusive 25th Grand Slam has been wrenched from his grasp.

Fonseca will face two-time finalist Casper Ruud, who beat 24th seed Tommy Paul in five sets, in round four.

He is also joined by second seed and 2024 runner-up Alexander Zverev, who beat Quentin Halys in four sets, and 19-year-old Rafael Jodar - who has emerged as a genuine title contender after winning 18 of his 21 clay-court matches in 2026.

On another sweltering afternoon in Paris, Djokovic began in cruise control, breaking his young opponent in the opening game of the match and twice more across the opening two sets as he built a 2-0 lead.

Although Djokovic was broken himself in the eighth game of the first set, he responded in style with a hold to love while in the second, he soared to his crowd-pleasing best, pointing to the sky and gesturing for Court Philippe-Chatrier to raise the noise after belying his age to chase down a drop-shot before stretching for a forehand winner.

As in his second-round meeting with Valentin Royer, Djokovic's level dipped in the third set but on this occasion, he was unable to reassert his dominance.

He became increasingly vocal in the frustration he directed at himself and his coaching team and looked fatigued, leaning over his towel box in exhaustion on several occasions while, at the opposite end of the court, Fonseca crunched booming forehands and toyed with the 39-year-old with multiple drop-shot winners.

Djokovic came out fighting after taking a lengthy break before the decider but, although he struck the first blow, breaking Fonseca in game four, it was the teenager - playing a fifth set for just the third time in his career - who rose to the occasion as the match reached its crescendo.

After hitting just 13 winners across the opening two sets, he struck 22 to Djokovic's 14 in the fifth, including three drop-shot winners in quick succession - which elicited pained smiles from his opponent - as he produced the decisive break at 5-5.

Djokovic earned a break point - his 16th - as Fonseca served for the match but the Brazilian nervelessly fired down three successive aces to secure a remarkable comeback win at the first attempt.