Rybakina retires with ankle injury, Swiatek into Cincinnati SF
Synopsis
Rybakina's shot at the WTA No. 1 ranking is on hold — and possibly in serious jeopardy. A left ankle that had been 'bothering her for a long period of time' gave way at the worst possible moment in Cincinnati, handing Sabalenka a reprieve and leaving Rybakina facing an MRI ahead of the US Open.
Key Takeaways
Elena Rybakina retired from her Cincinnati Open quarterfinal against Iga Swiatek on 21 August with a left ankle injury .
Swiatek was leading 4-1 when the match was abandoned; she advances to face Jessica Pegula in the semifinals.
Rybakina had needed to reach the Cincinnati final to claim the WTA World No.
1 ranking from Aryna Sabalenka .
Sabalenka will now enter the US Open as the top-ranked player after her own fourth-round exit to Sara Bejlek .
Rybakina is scheduled for an MRI ; her fitness for the US Open remains uncertain.
Swiatek is chasing back-to-back Cincinnati titles, a feat last achieved by Serena Williams in 2014-15 .
Elena Rybakina was forced to retire from her Cincinnati Open quarterfinal against Iga Swiatek on 21 August due to a left ankle injury, ending the Kazakh star's bid to displace Aryna Sabalenka at the summit of the WTA Rankings. Swiatek was leading 4-1 when the match was halted, advancing to the semifinals where she will face Jessica Pegula.
How the Injury Unfolded
The trouble became visible when Rybakina, serving at 40-15 in the second game of the second set, was unable to complete a net rally. Swiatek's sharp passing shot caught her off guard, and Rybakina's missed half-volley was followed by her visibly clutching her knees in discomfort.
She struggled to generate power on her serve during the subsequent point, which lasted just three shots. After a mid-game medical evaluation, Rybakina opted to withdraw from the contest shortly after.
Rybakina Speaks on the Injury
'Of course now I feel not the greatest, I couldn't even push from the serve,' Rybakina said after the match. 'It's painful to walk, and we will know more tomorrow when I do the MRI.'
She added that the ankle had been a concern for some time: 'It's been bothering me for a long period of time. It was under control, but then after playing a lot of matches in Canada and coming here playing two matches in a row... It was feeling okay before the match but unfortunately one wrong movement, one landing, and something happened.'
WTA No. 1 Race: Sabalenka Stays on Top
Rybakina's retirement effectively resolved the WTA World No. 1 race for now. Following Sabalenka's surprise fourth-round exit to Sara Bejlek on Wednesday, Rybakina had needed to reach the Cincinnati final to claim the top ranking. With her withdrawal, Sabalenka will carry the World No. 1 tag into the US Open, which begins next week.
Swiatek's Path and Pegula Challenge
Swiatek, who won the Toronto title earlier this month, is now bidding to become only the second woman since 2004 to successfully defend the Cincinnati crown — a feat last achieved by Serena Williams in 2014-15. She carries a 7-5 head-to-head advantage over Pegula into the semifinal, though the American has won four of their hard-court encounters, making the clash far from straightforward.
'I hope Elena will be fine. The next tournament is the priority... US Open is US Open. I hope she's gonna be ready for that. She's super close to being No. 1 in the world. It's a shame,' Swiatek said after the match.
What's Next
Rybakina is set to undergo an MRI to determine the extent of the ankle damage, with her fitness for the US Open — her next major opportunity to challenge for the top ranking — remaining uncertain. The tennis world will be watching closely as results come in over the coming days.
Point of View
Who lost to an unseeded opponent in the fourth round, retains No. 1 almost by default. The real question now is whether Rybakina can recover in time for the US Open, where the ranking battle will resume on the sport's biggest hard-court stage. If she cannot compete at full fitness in New York, the window to dislodge Sabalenka before the season's end narrows considerably.
NationPress
21 Aug 2026
Frequently Asked Questions
Why did Elena Rybakina retire from the Cincinnati Open quarterfinal?
Rybakina retired due to a left ankle injury that flared up mid-match against Iga Swiatek on 21 August. She said it was painful to walk after the match and that she would undergo an MRI to assess the damage.
What does Rybakina's retirement mean for the WTA No. 1 ranking?
Rybakina needed to reach the Cincinnati final to overtake Aryna Sabalenka at the top of the WTA Rankings. Her retirement means Sabalenka will retain the World No. 1 spot heading into the US Open.
Who does Iga Swiatek face in the Cincinnati Open semifinals?
Swiatek will face American Jessica Pegula in the semifinals. She holds a 7-5 head-to-head advantage over Pegula overall, but Pegula has won four of their hard-court meetings.
Is Rybakina's ankle injury a long-standing problem?
Yes. Rybakina said the ankle had been 'bothering her for a long period of time' but was under control until a wrong movement during the match caused it to worsen. She is awaiting MRI results to understand the full extent of the injury.
What record is Swiatek chasing at the Cincinnati Open?
Swiatek is bidding to become only the second woman since 2004 to successfully defend the Cincinnati title. Serena Williams is the only player to have done so in that period, winning back-to-back titles in 2014 and 2015.
