Naomi Osaka saw her Tokyo 2020 gold medal hopes go up in smoke after a painful defeat and admitted: "This one sucks more than the others."
The world number two had seen top-ranked Ash Barty bounced out in the first round, and the face of Japan's Games looked primed for a run deep into the tournament.
But the prospects of home glory in women's tennis were dashed in round three when Osaka crumbled 6-1 6-4 to Marketa Vondrousova of the Czech Republic.
Osaka, who lit the Olympic cauldron in Friday's opening ceremony, was left scrambling for answers as to why she underperformed.
"How disappointed am I? I mean, I'm disappointed in every loss, but I feel like this one sucks more than the others," she said.
"I definitely feel like there was a lot of pressure for this. I think it's maybe because I haven't played in the Olympics before and for the first year [it] was a bit much."
Asked what went wrong against the world number 42, Osaka said: "Everything – if you watch the match then you would probably see. I feel like there's a lot of things that I counted on that I couldn't rely on today."
There were certainly mitigating circumstances that the 23-year-old might have pointed to, given she had not played since the French Open before heading into the Olympics.
Osaka pulled out of Roland Garros after winning through her first-round match, citing anxiety and pointing to episodes of depression as she explained why she refused to take part in news conferences during the tournament.
Her declarations in Paris came after the four grand slam tournaments warned she could be thrown out of their events if she persistently refused to talk to the media.
Already a four-time grand slam winner, Osaka has found plenty of public support and there was criticism of the tennis authorities for their stance.
To many in Japan, she can do little wrong, although she could also do little right against Vondrousova. Osaka had 32 unforced errors to just 10 from Vondrousova, who also hit more winners.
After saving two match points, Osaka swung a backhand wide on a third to seal her exit.
Despite her disappointment, Osaka felt she had given a reasonable account following a recent absence from the tour, which saw her miss Wimbledon.
But the Games called for more than that, and it was a deflated Osaka who spoke afterwards, explaining how the pressure on her shoulders proved overbearing.
"I've taken long breaks before and I've managed to do well," she said. "I'm not saying that I did bad right now, but I do know that my expectations were a lot higher.
"I feel like my attitude wasn't that great because I don't really know how to cope with that pressure, so that's the best that I could have done in this situation."
Jarry defeats Paul to set up Zverev showdown in Italian Open final
Nicolas Jarry defeated Tommy Paul in three sets on Friday to set up a showdown with Alexander Zverev in the Italian Open final.
The men's world number 24 prevailed 6-3 6-7 (3-7) 6-3 in a little under three hours in Rome to reach his first ATP Masters 1000 final.
Jarry earned the only break of serve in the eighth game of the opening set, but Paul - who dropped just one set in four matches en route to this stage - hit back in the second.
Birthday boy Paul lost serve to trail 4-2 at one stage, but he produced one of the shots of the tournament at the ideal moment and soon dragged it back to 4-4.
A gruelling set concluded with Paul taking the tie-break 7-3, but Jarry was unperturbed and won the deciding set with his fifth match point to see off Paul in a gruelling contest.
Data Debrief:
Jarry is the third male Chilean in the Open Era to reach the singles final of the Italian Open after Marcelo Rios (1997-98) and Fernando Gonzalez (2007).
The 28-year-old registered 13 aces against Paul to his opponent's seven and hit 35 winners to 19 in a deserved victory.
Zverev ends Tabilo's dream run to reach Italian Open final
Alexander Zverev fought back from the brink to reach the Italian Open final on Friday, overcoming Alejandro Tabilo by a 1-6 7-6 (7-4) 6-2 scoreline in the last four.
Zverev was punished for a slow start as Tabilo took the opener within 32 minutes, but the German fought back in a one-hour, 15-minute slog of a second set.
The 2017 Italian Open champion put his foot down from 3-3 in the second-set tie-break, with Tabilo potentially feeling the effects of a fine run that included a last-32 upset of Novak Djokovic.
Zverev upped the intensity in the final set and won a huge 94 per cent of points behind his first serve as his opponent wilted, the third seed reaching the Rome final for a third time.
Data Debrief: Zverev draws level with Becker
Zverev will now face either Nicolas Jarry or Tommy Paul in Sunday's final, which will be his 11th at ATP 1000 Masters level.
That tally pulls him level with Boris Becker for most such finals by a German player since the format's 1990 introduction.
Sabalenka defeats Collins to set up Swiatek rematch
Aryna Sabalenka defeated Danielle Collins 7-5 6-2 to set up yet another meeting with Iga Swiatek at the Italian Open.
Having defeated Collins en route to the final of the Madrid Open, which she lost to Swiatek, Sabalenka repeated the trick with a straight sets win over the American in Thursday's semi-final.
And the Belarusian's reward will be an immediate rematch with Swiatek.
The duo have met 10 times, including in Madrid earlier this month, with Swiatek winning seven times and Sabalenka claiming three victories.
This will be Sabalenka's first appearance in the Italian Open final.
She is the sixth player, along with Simona Halep (2017), Dinara Safina (2009), Serena Williams (2013), Ons Jabeur (2022), and Swiatek (2024) to have reached the final of both Madrid and Rome in the same season.
Data Debrief: Perfect record
Collins is the only player against whom Sabalenka has registered six wins without a loss in WTA events, while only against Maria Sakkari and Elise Mertens does she have more wins in her career in such events (seven each).
The final will mark the fourth meeting on clay between Swiatek and Sabalenka as world number one and two, equalling Chris Evert and Martina Navratilova for the most meetings on the surface as the WTA's top-two ranked players.
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