The former US Open champion parted ways with her trainer in January after he stepped back due to health reasons but she has confirmed she will be working with both him and Mark Petchey during the grasscourt season, up to and including Wimbledon.

She said: "I'm happy to see him healthy, first of all.

"I mean, it's been such a long time since we were last on court together in Australia, and Mark is in Paris commentating, so Nick was around and it was nice to just have a few days with him.

"They'll both be helping me throughout the grass [season].

"I think having Mark and Nick, both people who have banks of experience and I think they can complement each other really well and I trust both of them a lot.

"So that is a big fundamental for me. So I'm looking forward to this upcoming season and seeing how it goes."

However, the 22-year-old sportswoman admitted she is struggling with an ongoing back problem but is hopeful things are turning around.

She said: "I have had a small interruption with a back spasm again so that was a bit annoying.

"That kind of hindered my grass prep but the last few days I have managed to get on the grass and just begin to feel my feet.

"I've been managing my back for the last few weeks now, and it's something that comes and goes.

"Overall, I just have to manage what I can take care of and if these things happen, I just need to deal with it and just keep doing the right things.

"It can be frustrating. I think when I was playing in Strasbourg in my second-round match, it definitely hindered me, and first round in Paris but I got through.

"And I think that just having to manage it, knowing that it keeps coming back is frustrating.

"But I try not to let it get to me, because I think I have a pretty good feel of when it happens what to do and how to manage it. It does take a few days out, but all I can do is kind of deal with what's in front of me."