ATP rankings update: Novak Djokovic ties Steffi Graf's record of 377 weeks as World No. 1, Daniil Medvedev returns to the top 10 | February 20, 2023

Novak Djokovic is on the cusp of breaking yet another record. He kicks off his 377th week atop the ATP rankings this week, equalling Steffi Graf's longstanding record.

The Serb is set to surpass the mark next week, adding yet another achievement to his already illustrious career. However, Djokovic's reign at the top is under threat as Carlos Alcaraz is right on his tail.

The Spaniard clinched the Argentina Open title over the weekend, making a winning comeback after four months away from the tour. Alcaraz is ranked No. 2 this week, just 590 points behind Djokovic. Stefanos Tsitsipas (No. 3), Casper Ruud (No. 4), Andrey Rublev (No. 5) and Rafael Nadal (No. 6) follow the teenager.

Taylor Fritz clinched his fifth career title at the Delray Beach Open on Sunday. While he remains steady at No. 7, he's set to make his top five debut in next week's ATP rankings. Nadal and Rublev are set to drop 500 points each next week, which will be enough to propel Fritz to No. 5.

Daniil Medvedev endured a rough few months which led to his exit from the top 10. However, the worst seems to be behind him now.

Medvedev staged a comeback to defeat Jannik Sinner in the final of the ABN AMRO Open in Rotterdam on Sunday. He's now back in the top 10, moving up three spots to No. 8.

Felix Auger-Aliassime (No. 9) and Holger Rune (No. 10) round out this week's top 10.

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Yoshihito Nishioka and Tallon Griekspoor among 8 players to reach new career highs in this week's ATP rankings

Tallon Griekspoor at the 2021 US Open.

Yoshihito Nishioka is enjoying the best phase of his career right now. Thanks to some strong results over the past year, his ranking has improved considerably. The Japanese has moved up a spot to No. 32 in this week's ATP rankings, a new career high for him.

Tallon Griekspoor's semifinal finish at the ABN AMRO Open has helped him jump 21 places to No. 40, securing a new career peak in the process. Gregoire Barrere and Bernabe Zapata Miralles have also zoomed up in the rankings this week. They're up by 13 and 11 spots to No. 58 and No. 63 respectively.

Jason Kubler (No. 74), Juan Pablo Varillas (No. 81), Michael Mmoh (No. 82) and Emilio Gomez (No. 91) are the remaining players to improve upon their rankings this week.

To view this week's ATP rankings, click here.