Coco Gauff's bid for history at the Australian Open ended in tears in the last 16 on Sunday as the 15-year-old crashed out in three sets to fellow American Sofia Kenin.
Kenin recovered from a set down to win convincingly 6-7 (5/7), 6-3, 6-0 and Gauff left the court crying.
The 14th seed Kenin plays Tunisia's unseeded Ons Jabeur after she defeated China's Wang Qiang to become the first Arab woman to reach a Grand Slam quarter-final.
"I just did the best I can. I just tried to take it like any other match," said Kenin, who also had tears in her eyes afterwards.
"I know she's (Gauff) playing well, I just tried to play my game and fight for every point and just not focus on anything else."
Gauff, the youngest player in the draw, has been one of the stories of the Australian Open, beating Venus Williams in the first round and then stunning reigning champion Naomi Osaka in round three.
The supremely talented teenager, who turns 16 in March, was attempting to become the youngest player to win a Grand Slam in the Open Era, which began in 1968.
The current record-holder is Martina Hingis, who triumphed at the 1997 Australian Open at 16 years old and nearly four months.