Emma Raducanu's game has already been 'changed' by Mark Petchey as colleague gives insight

is still trying to lock down her coaching partnership with Mark Petchey. The Tennis Channel commentator previously worked with Raducanu before her breakout summer in 2021 and has since returned to at her last two tournaments in Miami and Madrid, also coaching her through a training block in Los Angeles.

The world No. 49 is reportedly keen to . But, for now, she has confirmed that nothing is formal yet. While their partnership remains unclear, one of Petchey's Tennis Channel colleagues has revealed that he's already made "changes" to Raducanu's game.

Official or not, Raducanu's partnership with Petchey seems to be working. With the British coach in her box, she reached her first WTA 1000 final at the Miami Open last month.

Although she , Raducanu also had plenty of positives to take given her lack of experience on the clay. And one former champion believes Petchey's impact is already making a difference.

Retired former No. 1 Jim Courier works alongside Petchey in the media and has given insight into the tweaks the 54-year-old has made to her game.

"What I do know already is he's already changed her service motion by adding more shoulder turn there which is the idea is to try and give her a little bit more disguise and a little more power," the four-time Grand Slam champion told Tennis Channel.

"But I think overall this is a net positive for her on so many levels, we'll see where it goes."

Courier also believes Petchey is a good match for Raducanu given their brief coaching history.

He continued: "When Covid hit, they went to work together, in private in the UK, so he knew her before she became a star.

"That's obviously important for her in a time when she's not been able to find a regular relationship with coaches.

"Relying on someone that she knew before it happened is really important so I don't know how long it can last, but frankly the fact that they're spending time together right now is really important."

Raducanu is expected to compete at the WTA 1000 in Rome next month before the French Open. But Courier is interested in seeing whether her work with Petchey can last through the grass swing, where the 22-year-old is more comfortable.

"What I do hope is that it's able to last at least through the grass court season," he said.

"No one is expecting her to play well on clay, it's not a natural surface for her. Grass is a surface where she first surfaced, she made the round 16 before she won the US Open at Wimbledon.

"So, for me, it's about the building blocks for the grass court season."

For now, it's still an ad-hoc partnership. But, following her second-round exit in Madrid, Raducanu told the that Petchey would "hopefully"