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Nine years after Rafael Nadal first ascended to the world No. 1 ranking, he's returned to the top spot.

The tennis world is celebrating.

Watch: Nadal Returns to World No. 1

The 15-time Grand Slam champion took time out from his US Open practice schedule to send this message of thanks to fans for their support.

pic.twitter.com/klr2YRB9gi

— Rafa Nadal (@RafaelNadal) August 21, 2017

Here’s how some fellow players reacted to Nadal regaining world No. 1.

@RafaelNadal si alguien merece ser numero 1, ese eres tu,en todos los aspectos! Enhorabuena!! pic.twitter.com/lZzRsLEO2q

— David Ferrer (@DavidFerrer87) August 21, 2017

Enhorabuena @RafaelNadal por volver al número 1️⃣ 👏🏼🔝 Más que merecido!!!

— Fernando Verdasco (@FerVerdasco) August 21, 2017

@RafaelNadal crack, felicitaciones por otra vez estar en la cima..
👏🏻👏🏻👏🏻

— David Nalbandian (@nalbandiandavid) August 22, 2017

Congrats @RafaelNadal 🙌☝️ !!!!! #backtonumberone #máquina

— Alize Cornet (@alizecornet) August 22, 2017

 

@rafaelnadal #1 🏆 🎾🎾🎾

A post shared by Gustavo Kuerten (@gugakuerten) on

Aug 21, 2017 at 1:51pm PDT

 

The total #SolarEclipse wows the world & @rafaelnadal, who was spotted on court 17 today. 📸 by @ashleymarshallsport for #USOpen __ #eclipse2017 #nadal #rafa #rafaelnadal #doyouseewhatisee #sunnies #tennis #instawow

A post shared by US Open (@usopen) on

Aug 21, 2017 at 1:17pm PDT

Photo credit: Mark Peterson/Corleve