Ashleigh Barty described her retirement from Thursday's second-round clash against Magda Linette at the French Open as "heartbreaking".
Top seed Barty required medical attention during her first-round win over Bernarda Pera two days earlier, with a hip injury the cause for concern.
The 25-year-old – back at Roland Garros for the first time since winning her maiden grand slam title in Paris in 2019 – vowed to "play through the pain barrier", yet the injury prevented her from continuing when 1-6 2-2 down against her Polish opponent, who will face Ons Jabeur in the next round.
The Australian's retirement throws the draw wide open, with both of the top seeds now out after Naomi Osaka decided to withdraw amid her disagreement with tournament organisers.
Barty's clay-court season ended with a title in Stuttgart, a runner-up finish in Madrid and an appearance in the quarter-finals in Rome, and she could scarcely hide her disappointment at the way things ended for her in the French capital.
"It's heartbreaking," she told a media conference. "I mean, we have had such a brilliant clay-court season, and to get a little bit unlucky with timing and have something acute happen over the weekend and just kind of run out of time against the clock is disappointing.
"It won't take away the brilliant three months that we have had, as much as it hurts right now.
"We did everything, absolutely everything we could to give myself a chance. It was a small miracle that we were able to get on court for that first round.
"I just tried to give myself a chance and see how it felt. Obviously practicing, we've had our restrictions and essentially tried to stay as fresh as possible and not aggravate it in any way, but in a match that's unavoidable at times.
"It got worse today and it was becoming at the stage where it was unsafe. As hard as it is, it had to be done. Right from the first game, I was battling the pain, and it just became too severe."
SVITOLINA CRUISES THROUGH, PLISKOVA DUMPED OUT
Fifth seed Elina Svitolina booked a third-round meeting with Barbora Krejcikova after seeing off Ann Li 6-0 6-4.
Svitolina landed 74 per cent of her first serves and struck 10 winners to cruise past the American in the opening set.
Li bounced back in the second, roaring into a 4-1 lead, but Svitolina clawed her way back to ensure she reached at least the third round in seven of her nine appearances at Roland Garros.
Svitolina, who overturned a 2-5 deficit in the second set to beat Oceane Babel in the first round, said: "In the end, what I'm really happy with is the way that I was down in both matches in the second set and found a way.
"I found a good level and didn't give up on the second set. That was a really good point for me, and I was really playing composed in both matches. It was two different players, but I was really happy that I could win in two sets in both matches."
Up next is Krejcikova, who overcame Ekaterina Alexandrova 6-2 6-3.
There is no place in the third round for ninth seed Karolina Pliskova, who was soundly beaten 7-5 6-1 by Sloane Stephens, while number 13 seed Jennifer Brady battled past Fiona Ferro 6-1 1-6 6-4.
KENIN WINS BATTLE OF THE AMERICANS
Fourth seed Sofia Kenin defeated fellow American Hailey Baptiste, a qualifier who won four matches in Paris on her French Open debut, 7-5 6-3.
Kenin will now face another compatriot in 28th seed Jessica Pegula, who beat Tereza Martincova 6-3 6-3.
Elsewhere, defending champion Iga Swiatek thumped Rebecca Peterson 6-1 6-1, Coco Gauff got the better of Wang Qiang 6-3 7-6 (7-1), and Elise Mertens edged out Zarina Diyas 6-4 2-6 6-4.
Sinner avoids O'Connell upset at US Open
Jannik Sinner beat Australia's Christopher O'Connell in straight sets to reach the fourth round of the US Open on Saturday, avoiding a similar fate to Carlos Alcaraz and Novak Djokovic.
The men's draw at Flushing Meadows has been blown wide open by early exits for Alcaraz and Djokovic, but the top seed remains in the hunt after a composed performance.
He reached the fourth round for a fourth consecutive year with a routine 6-1 6-4 6-2 victory, setting the tone with several huge groundstrokes in the opening set.
O'Connell never looked likely to fight back as Sinner smashed 46 winners in a ruthless performance, wrapping up his win in one hour and 56 minutes.
The Australian Open champion will face either Tommy Paul or Gabriel Diallo for a place in the last eight, and he was relieved to survive an opening week full of surprises.
"Everything can happen in this sport, so I try to stay on my side of the net and I'm trying to take the tournament day by day," Sinner said in his on-court interview after the win.
"Each opponent is a very tough challenge and [I am] also enjoying every moment on the court. There have been already a couple of upsets, so let's see what's coming.
"But I'm very happy to still be here and hopefully I can play as many matches as possible. But as I said, we go day by day and then we'll see how it goes."
Data Debrief: Sinner heating up
Sinner lost his first set of the tournament to Mackenzie McDonald but has been largely untouchable since then.
He has only lost 18 games across his last nine sets of tennis, an average of two per set.
The Italian's winning streak now stands at seven straight matches, meanwhile, following his triumphant Cincinnati Open run.
Bayer Leverkusen 2-3 Leipzig: Visitors fightback halts unbeaten streak for Alonso's side
Bayer Leverkusen suffered their first defeat in 36 Bundesliga matches, as Leipzig came from behind to stun Xabi Alonso's side 3-2 at BayArena.
Lois Openda struck twice for Marco Rose's, who recovered from 2-0 down to make it two wins from two and move to the summit of the table.
It looked like business as usual for the reigning Bundesliga champions when they scored twice in the last seven minutes of the first half through Jeremie Frimpong and Alejandro Grimaldo.
However, Leipzig replied deep into first-half stoppage time with Kevin Kampl reducing the deficit.
Openda then brought the visitors level in the 57th minute, before a stunning long-range strike completed the turnaround 10 minutes from time, condemning Leverkusen to their first league defeat in 15 months.
Data Debrief: Leverkusen's long streak comes to a shuddering halt
Leipzig became the first side to beat Leverkusen in a Bundesliga match since Bochum achieved the feat a staggering 462 days earlier.
The visitors have begun a Bundesliga season with two wins from two for only the second time, also doing so in 2019-20.
They are also now unbeaten in 13 league matches, their longest such streak since Rose took charge.
As for Leverkusen, their invincible streak is officially history, as is their 29-game unbeaten run on home soil.
'We really let ourselves down' - Coleman slams Everton after late Bournemouth collapse
Seamus Coleman acknowledged Everton "really let ourselves down" and must "look at ourselves in the mirror" following their spectacular late collapse against Bournemouth.
Sean Dyche's side, who were seeking their first points of the season, led 2-0 in the 87th minute at Goodison Park through goals from Michael Keane and Dominic Calvert-Lewin.
However, the hosts were undone by three crosses in the latter stages, with Antoine Semenyo pulling a goal back and Lewis Cook levelling, before Luis Sinisterra completed a sensational turnaround in the sixth minute of stoppage time.
Boos rung around Goodison Park as the Toffees remained pointless and rooted to the foot of the Premier League table, and Coleman echoed the supporters' frustrations.
"We really let ourselves down in front of our fans," the skipper said. "We cannot take our foot off the gas at this level. Unfortunately, we did that.
"We cannot be conceding the goals that we did. We have to look at ourselves in the mirror."
Meanwhile, Dyche bemoaned the lack of responsibility amongst his players, as they became the first side in Premier League history to lose a game after leading by two or more goals in the 87th minute.
"We did so much right until they scored their first goal," the Everton head coach said. "The game should have been out of sight. We conceded one and then threw it away. I can't put my finger on it right now.
"They kept raining it forward and got their reward in the end. They were playing it forward and crossing it into the box, and we didn't deal with it. Simple stuff, but we threw it away. It is the third game we have thrown away this season.
"Everyone was looking at someone else to deal with things and that is when there is trouble. You could see the body language change. You have to see games through, and we have enough experience to do that, but today we didn't."
Bournemouth boss Andoni Iraola added: "It was the worst game we played this season. Everton deserved to win today, but the players kept pushing.
"I always have hope because this team has spirit. We have done it before and had some good comebacks. The spark of the first goal made us believe we could do it again."
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