Nick Kyrgios has leapt to Emma Raducanu's defence during her impressive run at the Miami Open.
The Australian took to social media to support the British star amid her recent coaching changes.
"People awfully quiet that Radacanu is winning now. Where all the experts at now? Lol coach's overrated," Kyrgios wrote.
The 2022 Wimbledon finalist has famously never employed a coach during his professional career.
Nick Kyrgios has leapt to Emma Raducanu's defence during her impressive run at the Miami Open
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He appeared to revel in the fact that Raducanu's superb Miami performance coincided with her not having an official trainer.
Kyrgios himself reached the second round in Miami, winning a professional singles tennis match for the first time since October 2022.
His comments came after Raducanu parted ways with coach Vlado Platenik after just two weeks and one match.
Raducanu, 22, has endured a difficult start to 2025 both on and off the court.
The Brit won just three of her first nine matches this year, suffering early exits in Singapore, Abu Dhabi, Doha and Indian Wells.
Nakashima has to be one of the most underrated players in the game. Also people awfully quiet that radacanu is winning now - where all the experts at now? lol coach’s overrated 😅
— Nicholas Kyrgios (@NickKyrgios) March 24, 2025
She also faced a horrific public stalking ordeal when a man displaying "fixated behaviour" followed her across the world.
The stalker handed her a letter in Dubai before appearing in the crowd the next day.
Amid these troubles, Raducanu took a break from Instagram.
Her coaching situation has been equally turbulent. Nick Cavaday stepped away for health reasons.
She briefly worked with Tom Welsh before bringing in Platenik on a trial basis.
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However, Raducanu ended this arrangement by phone after just two weeks.
The split came the night before her first-round match at the Miami Open.
Despite the coaching turmoil, Raducanu has found remarkable form in Miami.
She thrashed Sayaka Ishii 6-2 6-1 in her opening match.
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The 2021 US Open champion then secured a significant milestone by recording her first top-ten win off grass.
She outlasted world No 10 Emma Navarro in a thrilling contest, prevailing 7-6 2-6 7-6.
Raducanu's momentum continued in the third round against McCartney Kessler.
Her opponent retired when trailing 6-1 3-0, sending the Bromley star through to the last 16.
Emma Raducanu has been in outstanding form at the Miami Open
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This impressive run has set up a clash with No17 seed Amanda Anisimova, with that match set to take place later on Monday.
After Miami, Raducanu will face the challenge of the clay court season.
This surface has traditionally been where the world No 60 has struggled most.
However, there is reason for optimism as she approaches this part of the season with the tennis star starting to rediscover her mojo.
