Johanna Konta's fairytale in New York came to an end as she tumbled out of the US Open following a straight sets defeat to fifth seed Petra Kvitova.
The 24-year-old British number two had upset the odds to reach the last-16 of a grand slam for the first time, beating seeded pair Garbine Muguruza and Andrea Petkovic along the way.
But two-time Wimbledon champion Kvitova proved an obstacle too far, with the world number 97 left to rue a pair of untimely double faults in a 7-5 6-3 defeat.
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Konta, who had not been defeated since losing in the first round of Wimbledon, could not be faulted for her effort but her lack of experience at the highest level was telling.
While she failed to take any of her five break point opportunities in the opening set, her Czech opponent grasped her only two chances, albeit both times from Konta double faults.
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The Sydney-born Konta's previous best showing at one of the four grand slams was a second round appearance at Flushing Meadows three years ago and in the build-up she insisted she would not be overawed by the occasion of tackling one of the world's leading players.
That certainly seemed the case as a scorching backhand up the line gave her a break point in the opening game but Kvitova managed to hold before Konta then backed up an energetic start by holding to love.
The underdog turned the screw in game five by fashioning another couple of break point opportunities and although her left-handed opponent was managing to hold on she was failing to make much of an impression when returning to Konta, who lost just one point in her opening three service games.
Another two break point chances came and went in game nine and Konta's failure to take the initiative came back to haunt her when Kvitova, who herself had previously never gone beyond the fourth round in this competition, came on strong in the closing stages of the first set.
But Konta made a grave error at a crucial juncture by sending a lame second serve into the net at set point down to put Kvitova in the driving seat.
From there, the 25-year-old never looked in any serious danger of losing as she stepped up a gear.
The second set went with serve until Konta, trailing 4-3 was broken for a second time following another double fault. While she managed to stave off two match points she simply delayed the inevitable with Kvitova sealing victory in 88 minutes to set up a quarter-final contest with 26th seed Flavia Pennetta.