In her young career, has already built up a reputation for showing no mercy with her coaches. After her historic US Open win back in 2021, she quickly axed Andrew Richardson, the man who had been in her box throughout the tournament. And she recently ended a trial with Vladimir Platenik

There have been other successful partnerships, however, with Nick Cavaday and more recently with Mark Petchey. But one of the Brit's former mentors has shared exactly how a coach could expect to receive their P45 after just three weeks.

Long before her breakout summer in 2021, Raducanu enjoyed a stint with Philippe Dehaes, an experienced WTA coach who also worked with Daria Kasatkina, Elise Mertens and Greet Minnen.

Their partnership - which started while she was still an A-Level student - was short-lived, lasting three months before they had to stop for the pandemic. But Raducanu certainly left an impression on the Belgian coach.

After giving her a personality quiz, he knew immediately that she was extremely analytical. The world No. 41 always asked questions and wanted a lot of information on her opponents.

While Dehaes was able to tailor his approach for Raducanu, he suggested that, if a coach couldn't understand her curious nature, they'd quickly be sacked.

"For example, you cannot send her to play a match without giving her a lot of information about the opponent," he said in a book extract serialised by the .

"I knew it, because it was in her profile. But if you started the job and you don't know that she loves to know a lot of info, after three weeks you'll be fired, that's for sure."

Raducanu herself has confessed to her inquisitive attitude in the past, even admitting it had been the downfall of some of her coaching partnerships.

"I ask my coaches a lot of questions," she told BBC Radio 4 at the end of 2023.

"On certain occasions, they haven't been able to keep up with the questions I've asked and maybe that's why it ended."

For now, Raducanu has settled in with Mark Petchey. Like Dehaes, the British coach briefly joined her camp in 2020. They reunited earlier this year at the Miami Open when the world No. 41 asked for some help, and have been going strong ever since.

Petchey still has a full-time job as a commentator for Tennis Channel and is juggling his media role with his coaching duties.

He is already in Paris, where Raducanu plays her first match on Monday morning, and he is