Tennis sensation Carlos Alcaraz's stunning win at the ABN AMRO Open 2025 marked another milestone in his already impressive career, and the tennis fraternity has been abuzz with praise for this four-time Grand Slam winner just at the age of 21. Among the many who have celebrated his win were stalwarts Rafael Nadal and Novak Djokovic, both of whom took to their social media to offer their heartfelt congratulations to the Spaniard. Advertisment Also WATCH: Aryna Sabalenka and her sister show off their dance moves in recent TikTok video in Doha Rafael Nadal and Novak Djokovic send heartfelt congratulations Nadal's message showcased the ongoing mentorship of Alcaraz, as he has been a guiding figure for this young star. Despite their on-court rivalry, the 22-time Grand Slam winner has often spoken highly about Carlos Alcaraz, showcasing his immense potential and ability to perform at the highest level of the game. Meanwhile, Novak Djokovic's full praise further showcased that he has a huge respect for Alcaraz's game and the impact he has already had on this sport. As one of the most experienced players on the tour, Novak Djokovic's words carry major weight, and many saw it as an acknowledgement of Alcaraz's place among the sports legends. Also Read: Andy Murray set to remain Novak Djokovic's coach till Wimbledon 2025 View this post on Instagram A post shared by Carlos Alcaraz Garfia (@carlitosalcarazz) Rafael Nadal and Novak Djokovic congratulating Carlos on Instagram after his @abnamroopen win 🏆 🫡 pic.twitter.com/kG6rynPS0z — Carlos Alcaraz Daily (@alcarazdaily) February 10, 2025 Alcaraz defeated Aussie sensation Alex de Minaur in the final thriller of Rotterdam. The star player had a great start and looked like he would clinch the win in straight sets, but De Minaur staged his comeback in the second set to take it to the decider. However, Carlos showcased his beast form and produced absurd shots to win the game in an epic three-setter to win his first-ever indoor title. "That gives me a lot of confidence. My best level will also come on this surface. This title is special because it is the first one indoors and I have shown that I can play well on this type of court. I'm happy because I knew I had the level to play well in these conditions. There are players who have a better game indoors, but I've managed to beat players like them and that gives me a lot of confidence. My best level will also come on this surface; I have to work on improving what I've trained for," Carlos Alcaraz said after the win. Also Read: 'This title is special...' - Carlos Alcaraz reflects on ABN AMRO Open win and indoor court improvement