Coco Gauff says her main focus is on improving her serve after adding Matt Daly to her coaching team ahead of the China Open.

Daly, who has previously coached former Wimbledon semi-finalist Denis Shapovalov, has linked up with Gauff and her long-term mentor Jean-Christophe Faurel, following her split with Brad Gilbert earlier this month.

The world number six is gearing up for her first tournament since her US Open title defence ended at the hands of Emma Navarro in round four at Flushing Meadows.

Gauff, who hit 19 double-faults during that defeat, has failed to progress beyond the last 16 in any of her last five events, having previously reached three successive semi-finals at the Italian Open, French Open and Berlin Open.

But the 20-year-old is looking forward to a fresh start, and is already seeing the benefits of her work with Daly, ahead of facing Clara Burel in Beijing on Friday.

"There are other parts of my game that I want to work on, too, but the focus right now is the serve," she told the WTA Insider.

"When I serve well, I play pretty well. For me, that's the basis for my game. Already, the little bit we've done has made a drastic improvement to where I was three weeks ago.

"At this point, there's not a crazy amount, like going through a technique change or resetting everything. It's just subtle things that, doing it for a week now, will help me.

"I'm super excited about a new change and, hopefully, to improve other parts of my game. 

"Working with Brad was really great and, obviously, we had a great partnership. It was just time to do a reset, a refresh and add some things in my game that I felt like I need to do to have a better season next year."