Djokovic’s fitness has been and will always be extraordinary.

He is aiming to become the oldest Grand Slam singles champion in the Open era. Ken Rosewall was 37 when he won the last of his eight major titles, while the now-retired Roger Federer and Rafael Nadal were 36 when they last triumphed.

Djokovic has reached the semi-finals of all three Grand Slams this year. He has beaten players above him in the rankings, players who supposedly have the advantage of youth over him. And he looked superb at times during his Wimbledon run: the serve firing, the feet gliding into the corners.

But he has to contend with Sinner and Carlos Alcaraz, who will leave here having carved up the past seven Grand Slams between them, and will inevitably recover quicker than Djokovic.

“It’s tough for me to accept because I feel like when I’m fit, I can still play really good tennis. I’ve proven that this year,” Djokovic said.

“Playing best-of-five, particularly this year, has been a real struggle for me physically. The longer the tournament goes, the worse the condition gets.

“I have to play Sinner or Alcaraz. These guys are fit, young, sharp. I feel like I’m going into the match with the tank half-empty.

“It’s just not possible to win a match like that.”

Djokovic considered withdrawing but did not – and at 3-0 up on Sinner in the third set, with a point for a double break, he would have felt vindicated.

But Sinner increased his intensity, putting more power behind his shots, and Djokovic won just one more game from then on.