Madrid Open 2026: Sabalenka Advances as Rybakina & Gauff Suffer Shock Exits in WTA Upsets & Illness Drama

Elena Rybakina and Coco Gauff suffered stunning fourth-round exits at the Madrid Open, while Aryna Sabalenka battled past Naomi Osaka to reach the quarterfinals, as a wave of upsets and illness disruptions reshaped the WTA 1000 event at La Caja Mágica. Anastasia Potapova and Linda Noskova produced standout victories in a tournament defined by dramatic momentum swings, physical strain and late-night finishes.

The results on Monday and early Tuesday in Madrid delivered one of the most unpredictable stages of the 2026 clay-court season. Top seeds fell in succession, several players struggled with illness, and the women’s draw opened significantly as the tournament moved into the quarterfinal phase.

Rybakina Stunned By Potapova In One Of Madrid’s Biggest Upsets

Elena Rybakina, the world number two and Australian Open champion, exited the Madrid Open after a 7-6(10-8), 6-4 defeat to Anastasia Potapova in the fourth round, according to match reporting from Sportstar and News.Az.

Potapova produced a composed performance in the key moments, saving set pressure in a tightly contested opening tie-break before capitalising on late breaks in the second set. The result marked one of the most significant wins of her career and sent her into a WTA 1000 quarterfinal for the first time in Madrid.

“I’m speechless, I’m extremely happy,” Potapova said, according to News.Az. “It was such a tough match and tough opponent.”

WTA match coverage confirmed that Rybakina had chances to shift momentum, including a break advantage in the second set, but she failed to consolidate as Potapova raised her level at crucial stages. The defeat added to a growing list of early exits for top seeds in Madrid.

Coco Gauff Falls To Linda Noskova After Final-Set Collapse

Coco Gauff, the world number three, also exited the tournament after a 6-4, 1-6, 7-6(5) defeat to Linda Noskova in a match defined by momentum swings and missed closing opportunities.

Gauff controlled large portions of the deciding set, including a double-break lead, but Noskova refused to fade and recovered in a tense tie-break to secure her place in the quarterfinals.

“I know the match is not over until it’s over,” Noskova said, according to Tennis365.

The American’s exit also carried physical concerns. Sky Sports reported that Gauff had struggled with illness during the tournament, including an earlier match where she required medical attention and vomited on court. The report also linked her condition to a wider stomach illness affecting multiple players in Madrid.

According to Sky Sports, several athletes, including Iga Świątek, Marin Čilić and Madison Keys, either withdrew or retired during the event due to illness-related issues, raising concerns over a possible viral outbreak or food-related cause.

Sabalenka Holds Firm After Osaka Challenge To Extend Winning Run

World number one Aryna Sabalenka continued her strong form with a 6-7(1), 6-3, 6-2 victory over Naomi Osaka, securing her place in the quarterfinals after a difficult opening set.

Osaka dominated the first-set tie-break before Sabalenka responded with increased aggression on return, breaking multiple times across the second and third sets to regain control of the match.

Sabalenka’s victory extended her winning streak in WTA 1000 events to 15 matches, a run that includes titles earlier in the season, according to WTA statistics referenced in match coverage.

Speaking after the match, Sabalenka acknowledged the challenge posed by Osaka and her own need to adapt mid-match.

“I’m happy I was able to raise my level,” Sabalenka said.

Sabalenka will now face Hailey Baptiste in the quarterfinals, setting up a rematch of their earlier-season encounter in Miami.

Hailey Baptiste Continues Breakthrough Run With Marathon Win

Hailey Baptiste advanced to the quarterfinals after a dramatic three-set win over Belinda Bencic, a match highlighted by a 16-14 second-set tie-break.

Baptiste recovered after losing the extended tie-break, regrouping in the deciding set to secure one of the most important victories of her career at WTA 1000 level.

The result continues her breakout 2026 season and sets up a high-pressure meeting with Sabalenka, where she will once again face the world number one on a major stage.

“I believe I can win,” Baptiste said in WTA interviews, adding that she plans to stay aggressive against top-level opposition.

Potapova Sets Up Quarterfinal Clash With Karolina Pliskova

Anastasia Potapova’s victory over Rybakina earned her a quarterfinal against Karolina Pliskova, who defeated Solana Sierra 6-4, 6-3 in a controlled straight-sets performance, according to Sportstar.

Pliskova, a former world number one, reached her first WTA 1000 clay-court quarterfinal in several seasons, continuing her steady return to form on the surface.

The matchup presents a contrast in styles: Potapova’s aggressive baseline pressure against Pliskova’s serve-driven control and experience in deep tournament runs.

Noskova And Kostyuk Set Up High-Stakes Quarterfinal

Linda Noskova’s win over Gauff earned her a quarterfinal against Marta Kostyuk, who defeated Caty McNally 6-2, 6-3 in a straightforward performance.

Kostyuk controlled the match with consistent returning and clean baseline execution, extending her strong clay-court form in 2026.

Noskova, meanwhile, continues a breakout season marked by multiple wins over higher-ranked opponents, with her victory over Gauff standing as one of the most significant of her career to date.

Their quarterfinal meeting brings together two of the most in-form rising players in the draw.

Leylah Fernandez Meets Mirra Andreeva In Blockbuster Quarterfinal

Leylah Fernandez advanced to the quarterfinals after a 6-3, 6-2 win over Ann Li, according to WTA match reporting. She now faces Mirra Andreeva, who overcame Anna Bondar in a tense three-set contest.

Andreeva, ranked inside the top 10, recovered after losing the opening set and surviving a late collapse in the third before sealing a tie-break victory, highlighting both her resilience and inconsistency under pressure.

Fernandez has now reached consecutive clay-court quarterfinals following a difficult start to the season, while Andreeva continues to build on a strong 2026 campaign with multiple deep runs at WTA 1000 level.

Illness Outbreak Adds Uncertainty To Madrid Open

A recurring stomach illness has impacted multiple players throughout the tournament, according to Sky Sports and WTA reporting. Withdrawals and retirements have included Iga Świątek, Marin Čilić and Madison Keys, while several other players reported symptoms during matches.

Sky Sports noted that Coco Gauff also required medical attention during play, and speculation among players has included potential food-related causes, though no official confirmation has been provided by tournament organisers.

Aryna Sabalenka referenced the situation after her win, saying she adjusted her diet to reduce risk. “I heard I have to avoid those tacos,” she said, as reported by Sky Sports.

At present, no official medical statement has confirmed the source of the illness, and tournament organisers continue to monitor player welfare.

Quarterfinal Line-Up And What Comes Next

The Madrid Open women’s quarterfinals now feature Aryna Sabalenka, Hailey Baptiste, Anastasia Potapova, Karolina Pliskova, Linda Noskova, Marta Kostyuk, Leylah Fernandez and Mirra Andreeva.

According to WTA scheduling, quarterfinal matches will take place across Tuesday and Wednesday at La Caja Mágica, with Sabalenka’s clash against Baptiste highlighted as a headline contest.

With multiple top seeds eliminated, including Rybakina and Gauff, the draw has opened significantly, creating one of the most unpredictable late stages of a WTA 1000 tournament this season.

Outlook

The Madrid Open has entered its final stages with no clear dominant pathway to the title, as Sabalenka remains the highest-ranked player in contention while rising names such as Noskova, Potapova and Baptiste continue to disrupt expectations. With illness, upsets and momentum shifts defining the tournament, the quarterfinal stage now sets up a wide-open race to the Madrid final.