Coco Gauff won the French Open last year, doubling her Grand Slam tally, but there’s still plenty of work to do.
The 21-year-old’s serve was the topic of conversation for much of the 2025 season.
Gauff even hired a biomechanics expert to fix the problem, having served a concerning number of double faults in the lead-up to the US Open.
Where will Coco Gauff be ranked at the end of the 2026 season?
The issue persists, however, and Gauff will need to sort it out soon if she wants to progress further.
Unfortunately for Gauff, that’s not the only problem with her game.
During the latest episode of ‘Off Court with Greg‘, former world number four Greg Rusedski highlighted the two issues Gauff needs to work on.
Greg Rusedski tells Coco Gauff to clean up her second serve and forehand
“Second serve is so important,” said Rusedski.

“So I would say work on the second serve with better accuracy.
Coco Gauff’s serving stats in 2025
- Aces – 188 (16th on WTA Tour)
- Double faults – 431 (1st on WTA Tour)
- 1st Serve % – 61.5% (184th on WTA Tour)
- 1st Serve points won % – 68.2% (29th on WTA Tour)
- 2nd Serve % – 43% (179th on WTA Tour)
- Service points won % – 58.5% (44th on WTA Tour)
- Break points saved % – 52.8% (161st on WTA Tour)
- Service games won % – 68.1% (65th on WTA Tour)
“Almost have two second serves; she almost doesn’t need a first serve at times, get the percentage up!”
“Forehand as well, when players go in with pace, she can’t change the direction up the line because of the extreme grip, so those are the two areas with Coco [Gauff].”
After noting areas of her game she can improve, Rusedski was quick to point out one of Gauff’s best attributes.

“But one thing that impresses me about her, her mentality is second to none,” he said.
“We saw that at Roland Garros when she won the title, and her physicality, unbelievable mover around the court.
Coco Gauff at the 2025 French Open
- 2025 French Open 1R [WIN] vs Olivia Gadecki, 6-2, 6-2
- 2025 French Open 2R [WIN] vs Tereza Valentova, 6-2, 6-4
- 2025 French Open 3R [WIN] vs Marie Bouzkova, 6-1, 7-6
- 2025 French Open 4R [WIN] vs Ekaterina Alexandrova, 6-0, 7-5
- 2025 French Open QF [WIN] vs Madison Keys, 6-7, 6-4, 6-1
- 2025 French Open SF [WIN] vs Lois Boisson, 6-1, 6-2
- 2025 French Open F [WIN] vs Aryna Sabalenka, 6-7, 6-2, 6-4
“So during the off-season, I really hope those two areas are cleaned up.
“Because if she wants to be one of the greats of the game, which she has the possibility to be, you have to keep on getting better.”
Who is your favorite player on the WTA Tour right now?
Gauff is a long way from being recognised as one of the greats, but she’s certainly on the right path, with two Grand Slams to her name at 21.
The American has won 22 titles during her career so far, and would love nothing more than to add a second United Cup to her trophy cabinet in 2026…
Coco Gauff and Team USA prepare for tricky United Cup quarterfinal tie
Gauff and Taylor Fritz weren’t at their best in the group stages, but that didn’t stop them from booking their places in the last eight.
Which country do you think will win the United Cup?
Group A final standings
| Position | Team | Ties W-L | Matches W-L | Sets W-L | Games W-L |
| 1 | USA | 2-0 | 4-2 | 10-5 (67%) | 77-66 (54%) |
| 2 | Argentina | 1-1 | 4-2 | 8-6 (57%) | 66-66 (50%) |
| 3 | Spain | 0-2 | 1-5 | 4-11 (27%) | 69-80 (46%) |
They’ll play Greece in the quarterfinals, who, like the Americans, went unbeaten in their group.
Group E final standings
| Position | Team | Ties W-L | Matches W-L | Sets W-L | Games W-L |
| 1 | Greece | 2-0 | 5-1 | 11-4 (73%) | 76-51 (60%) |
| 2 | Great Britain | 1-1 | 3-3 | 8-8 (50%) | 65-73 (47%) |
| 3 | Japan | 0-2 | 1-5 | 3-10 (23%) | 51-68 (43%) |
Gauff will kick off the quarterfinal tie against Maria Sakkari, who took down former Grand Slam champions Naomi Osaka and Emma Raducanu in her previous two matches.

If Gauff is to beat Sakkari, she’ll need to be a lot better than she was in her previous match.
Gauff lost to Spain’s Jessica Bouzas Maneiro 1-6, 7-6, 0-6.
Only time will tell who will emerge victorious in Team USA’s quarterfinal tie with Greece, but you certainly won’t want to miss any of the action.
The Americans will take on Greece on Wednesday, January 7.
If they are to win, Team USA will meet either Australia, Poland, or Germany in the United Cup semifinals on Saturday, January 10.
Receive exclusive tennis news and updates twice a week to your mailbox


