Andy Murray gave a frank answer when asked if he had any advice for fellow British star Emma Raducanu, who is currently on the lookout for her next coach.

Raducanu parted ways with coach Andrew Richardson after she gained improbable Grand Slam glory last month.

A former Davis Cup player, Richardson coached Raducanu for two years at youth level. He linked up with the teenage sensation again in July on a short-term deal which covered the US Open.

Raducanu has now teamed up with Johanna Konta’s former mentor, Esteban Carril, but on a trial basis.

Her search for a new coach has prompted comments from fans, pundits and former players, but Murray has refused to be drawn into the debate.

Speaking after his loss to Diego Schwartzman in the last-16 of the European Open, Murray bluntly replied "no" when asked whether he had advice for Raducanu.

The three-time Grand Slam winner has previously made it clear he would not offer unsolicited guidance to Raducanu.

"I never really liked it when all of the ex-British tennis players were always wading in after every win and loss about what you should be doing, what you shouldn't be doing, and a lot of them also giving advice when you haven't asked for it as well," he said in September.

"I found it incredibly irritating - and still do today. I don't want to be that person.

"What Emma has achieved is incredible and I hope she goes on to do more amazing things in the sport, and if she ever wants to talk, or her family, obviously I would always be there on the end of the phone.

"But I don't want to be that guy after every loss or win just wading in and giving my opinion on what she should or shouldn't be doing differently, because it's not helpful."

The 18-year-old Raducanu rocketed to international stardom after winning the US Open last month, defeating Canada’s Leylah Fernandez 6-4, 6-3 in the final.

She became the first ever qualifier to win a Grand Slam, and the first British woman to triumph at a Grand Slam in 44 years.

Since splitting with Richardson, Raducanu has indeed been offered an abundance of advice. The latest to speak out is America’s Tracy Austin, the former teenage prodigy who won the US Open in 1979 at the age of 16.

Austin told the Tennis Channel that Raducanu should return to Richardson.

"These top coaches, [Raducanu's] dad said, are expensive," she said. "And yes they are, so I’d say go back to Andrew Richardson. I saw them at the US Open before each match, they seemed to have a nice camaraderie.

"She needs to have something that’s the same as that she had at the US Open because she’s stayed the same, she’s more confident, but everything around her has changed. So the parents they need to try to help her find that foundation again.

"Either go back to your old coach or really go for it and get someone who’s experienced."