For the first time in almost 2 decades, Djokovic, Federer, and Nadal are no longer dominating tennis' world rankings

• Novak Djokovic will fall to third in the men's tennis world rankings on Monday.
• Djokovic has been ranked first or second in the world consistently since 2018.

Novak Djokovic will lose his place at the top of the world of men's tennis on Monday when the ATP releases its latest rankings.

The Serbian, who has won just one tournament this year, is set to drop from first to third, per Live Tennis, a website which projects upcoming ATP World Rankings.

Reigning US Open champion Daniil Medvedev will move to number one, while Germany's Alexander Zverev will move into second.

Djokovic's drop to third is the first time he has fallen outside of the top two since October 2018 and will also mark the first time in almost two decades that Djokovic, Rafael Nadal, and Roger Federer have all been outside the top two.

The last time the trio — collectively known as the "Big Three" — were all outside of the top two was on November 15, 2003.

Nadal, who has already won both the Australian Open and French Open this year, will be fourth in Monday's updated rankings.

Federer will drop to 66th in the world, falling 16 places from his current ranking of 50th. He has not played a single tournament since the turn of the year due to injury.

66th will be Federer's lowest ranking since October 1999, when he was just 18 years old.

Aside from winning last month's Italian Open, Djokovic has had a year to forget.

The 35-year-old was deported from Australia ahead of the Australian Open in January due to being unvaccinated against COVID-19.

He subsequently did not play for over a month and struggled to find his form upon his return.

At the Monte Carlo Masters in April, the Serb crashed out in the first round as he was beaten by unseeded Spaniard Alejandro Davidovich Fokina.

Later that month, he was beaten in the final of the Serbian Open by Andrey Rublev, then in May, he suffered a shock defeat to youngster Carlos Alcaraz in the semifinals of the Madrid Open.

At the French Open, he lost to eventual winner Nadal in the quarterfinals.

Speaking after the loss to Nadal in Paris, Djokovic appeared to blame the defeat on it being scheduled too late at night.

The match began at 8.45 p.m. local time and lasted over four hours, meaning it did not finish until the early hours of the next day.

"I think they are starting too late," said Djokovic. ""But TV decides, that's the world we live in."