British No. 1 Jack Draper pulled off a big upset in the Californian desert on Wednesday night, taking out Novak Djokovic in a thrilling three-setter. Draper is the reigning champion in Indian Wells, but only recently returned from a six-month injury layoff. And he's already making waves on the tour again after beating Djokovic 4-6 6-4 7-6(5).

The No. 14 seed won the match, but he came out on the losing end of a thrilling, 24-shot rally in the very first game of the third and final set. Draper ran corner-to-corner as he chased down the ball, and Djokovic ended up on the ground by the end of it, as the Brit ultimately sent the ball long to lose the point.

However, the marathon point ultimately cost Djokovic, who admitted he "ran completely out of gas". And retired tennis icon Martina Navratilova believes the 38-year-old must now change his game plan, suggesting he was only tiring himself out by extending the rallies.

Speaking on Sky Sports the morning after Djokovic's fourth-round exit, the 18-time Major champion said: "I think he's at that age where he needs to keep the points shorter. He can still tire people out, but that should not be the goal.

"That should be a byproduct of how he is playing, rather than looking for playing defence and tiring people out, running him side to side, because now he's tiring himself out. You have to give a nod to Father Time eventually, and I think he needs to shorten up the points rather than hoping that he will tire his opponent out."

Djokovic may well follow her advice after claiming that point changed the outcome of the match. The No. 3 seed was broken a couple of games later, but still kept things very close in the third and final set, breaking back when Draper served for victory. The Brit ultimately won in a tiebreak.

The five-time former champion in Indian Wells later said: "One point [made the difference]. Yeah, one point. I mean, it cost me a break after, you know. It was great winning that point in that game, but I just, like, ran completely out of the gas and just started to feel a bit better towards basically end of the third.

"He played a sloppy game to close it out 5-4, and, you know, I got the crowd, you know, backing me, and I felt the energy. It was, like, maybe I'm gonna take this one. It was so close, so close. I mean, just unfortunate few mistakes from my side. Tiebreak, 4-3 up. 5-5, as well. That's tennis."

It was still a good run for Djokovic in the desert, where he's struggled in recent years. The Serbian superstar lifted the trophy five times from 2008 to 2016. Since then, he's only been to the quarter-finals once. This was his first appearance in the fourth round since 2017.

"I mean, bitter feeling right now, losing a match like this. But proud of myself for fighting and really giving it all on the court. That's for sure," Djokovic added. "That's the one thing that I'll take as a highlight, you know, just the fact of not giving up and trying. I mean, obviously I lost to a great player, and it was really such an even match throughout the entire two-and-a-half hours. But, yeah, just a bit disappointed, of course, with getting off the court, fresh off the court. It is okay. I mean, I wish I could have done better, but it was a good fight."

EXPRESS SPORT ON FB! Get all the best sports news and much more on our Facebook page