The British star has faced questions about her commitment to the sport since her remarkable victory at the US Open in 2021 at the age of 18, but Petchey – who coached Raducanu earlier this year – insists that she has a deep love of the sport.

He told OLBG: "From my perspective, I hope people can really understand how much she loves tennis. She's totally invested in it. She watches it all the time.

"She practices as hard as anyone I know and has spent more time on the court, or as much time on the court, as everybody else. And obviously she's living a very different life.

"She's living a lot of her career in reverse and that's not been easy. Having set the bar so high so early on in your career, every week you are measured not just by other people's expectations but also your own expectations.

"That is a good thing because it drives you to be as good as you can be. But on the other hand, it's difficult, because at times it can feel like you're not hitting the standard you want to because that's where your bar is at.

"From that perspective, her work ethic and her desire to be able to do what she did back in 2021 is as great as I remember in 2020, where I first had a chance to work with her."

Raducanu was thrust into the global spotlight with her US Open success but explained that she was "burned" by the fame that accompanied the victory.

She said earlier this year: "Once I let someone in, I let them in fully, and I care for them so much. I have been burned a few times, a few people who I've really trusted have surprised me.

"It's very difficult for me to trust new people. I find myself gravitating towards those people I've known before the US Open. My circle is smaller than ever.

"Up until I won the US Open, I was so sheltered. Up to 18, I was just with my parents. It was like nothing could touch me. And then all of a sudden everyone came and I got burned quite a lot of times, whether that's professionally or personally. Now I’m very Fort Knox with who I let in."