15 Tennis Stars Who Forgot How to Win

Even the best tennis players can hit a rough patch. Whether it’s due to injuries, mental blocks, or just plain bad luck, some stars went from lifting trophies to struggling just to make it out of the first round.

This list isn’t about bashing legends—it’s more of a tribute to how quickly things can change in tennis. These 15 players once ruled the court but eventually hit a slump so deep, fans started asking, “Wait, what happened?”

15. Eugenie Bouchard

Aug 4, 2024; Toronto, Ontario, USA; Eugenie Bouchard (CAN) plays a shot against Moyuka Uchijima (JPN) (not shown) during first round qualifying play at Sobeys Stadium. Mandatory Credit: Dan Hamilton-Imagn Images
Dan Hamilton-Imagn Images

Once a rising star with Grand Slam finals in sight, Bouchard’s momentum hit the brakes hard. Her ranking plummeted, and wins became rare instead of expected.

14. Jack Sock

Feb 4, 2024; Hollywood, FL 33314, FL, USA; Jack Sock grimaces after a point during Pickleball Slam 2 at Hard Rock Live at Seminole Hard Rock Hotel & Casino. Mandatory Credit: Jim Rassol-Imagn Images
Jim Rassol-Imagn Images

There was a time when Jack Sock was carrying American tennis hopes. Then came the injuries and losses, and suddenly his biggest wins were in doubles.

13. Jelena Ostapenko

Jelena Ostapenko
Mike Frey / Imagn Images

She shocked the world with a French Open title, but that spark didn’t last long. After that breakthrough, consistency left the chat.

12. Grigor Dimitrov

Mar 26, 2025; Miami, FL, USA; Grigor Dimitrov (BUL) waves to the crowd after his match against Francisco Cerundolo (ARG)(not pictured) on day nine of the Miami Open at Hard Rock Stadium. Mandatory Credit: Geoff Burke-Imagn Images
Geoff Burke-Imagn Images

Dimitrov was once called “Baby Fed” for a reason, but the titles didn’t quite follow. He flashes brilliance, then disappears for months.

11. Sloane Stephens

Jan 12, 2025; Melbourne, Victoria, Australia; Sloane Stephens of United States of America hits a forehand during her match against Aryna Sabalenka in the first round of the women's singles at the 2025 Australian Open at Melbourne Park. Mandatory Credit: Mike Frey-Imagn Images
Mike Frey-Imagn Images

After winning the US Open, it seemed like Sloane was ready to dominate. Instead, her form dipped and her results followed suit.

10. Bernard Tomic

Aug 5, 2019; Montreal, Quebec, Canada; Bernard Tomic from Australia hits a shot against Roberto Bautista Agut from Spain (not pictured) during the Rogers Cup tennis tournament at Stade IGA. Mandatory Credit: Jean-Yves Ahern-Imagn Images
Jean-Yves Ahern-Imagn Images

Tomic had talent, no doubt, but motivation was a whole other story. He’s been more famous for off-court comments than on-court wins lately.

9. Fabio Fognini

Fabio Fognini
Jayne Kamin-Oncea / Imagn Images

Always entertaining and always unpredictable, Fognini could beat anyone—when he felt like it. Unfortunately, that “feel like it” phase hasn’t shown up much lately.

8. Garbiñe Muguruza

Garbiñe Muguruza
wikipedia

With two Grand Slam titles, Muguruza looked like the future of the sport. Then came a string of injuries, early exits, and a long break from winning.

7. David Goffin

Mar 21, 2025; Miami, FL, USA; David Goffin (BEL) celebrates after match point against Carlos Alcaraz (ESP)(not pictured) on day four of the Miami Open at Hard Rock Stadium. Mandatory Credit: Geoff Burke-Imagn Images
Geoff Burke-Imagn Images

Goffin used to be a consistent threat in big tournaments. But recent years have seen more first-round exits than deep runs.

6. Caroline Garcia

Mar 7, 2025; Indian Wells, CA, USA; Caroline Garcia (FRA) hits a ball against Iga Swiatek (POL) at Indian Well Tennis Garden. Mandatory Credit: Jonathan Hui-Imagn Images
Jonathan Hui-Imagn Images

She climbed the rankings and looked unstoppable at times. But her form disappeared faster than you could say “double fault.”

5. Dominic Thiem

Aug 26, 2024; Flushing, NY, USA; Dominic Thiem of Austria hits to Ben Shelton of the USA on day one of the 2024 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-Imagn Images
Robert Deutsch-Imagn Images

After winning the US Open, Thiem seemed ready to take over the tour. Injuries and a brutal slump had other plans.

4. Andrea Petkovic

Andrea Petkovic
Wikipedia

Always charismatic and once a Top 10 player, Petkovic’s later career was marked by more commentary than comeback. The wins dried up before the retirement announcement did.

3. Kei Nishikori

Jan 15, 2025; Melbourne, Victoria, Australia; Kei Nishikori of Japan hits a forehand during his match against Tommy Paul of United States of America in the second round of the men's singles at the 2025 Australian Open at Melbourne Park. Mandatory Credit: Mike Frey-Imagn Images
Mike Frey-Imagn Images

Injuries wrecked what could’ve been a legendary career. The flashes of brilliance became fewer and farther between.

Read more: 16 Tennis Stars Who Flamed Out After a Breakout Year

2. Coco Vandeweghe

Mar 6, 2023; Indian Wells, CA, USA; Coco Vandeweghe (USA) hits a shot during her 1st round match against Laura Siegemund (not pictured) at the BNP Paribas Open at the Indian Well Tennis Garden. Mandatory Credit: Jayne Kamin-Oncea-Imagn Images
Jayne Kamin-Oncea-Imagn Images

She had power, swagger, and a game that gave top players nightmares. Then came the losses, the layoffs, and eventually the fade from the spotlight.

Read more: Ranking the 12 Most Arrogant Tennis Stars Ever

1. Nick Kyrgios

Nick Kyrgios
Geoff Burke / Imagn Images

Kyrgios might still draw crowds and headlines, but actual wins? Not so much. Injuries and inactivity have made him more myth than menace lately.

Read more: 15 Tennis Players Who Treated Every Match Like a One-Person Show

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