Updated 30 minutes ago
Coco Gauff's US Open title defence is over after she was beaten by Emma Navarro in the fourth round in New York.
Third seed Gauff produced a disjointed performance to lose 6-3 4-6 6-3 to fellow American and 13th seed Navarro.
Gauff hit 19 double faults - including 11 in the third set alone - and produced three in the final game of the match to hand Navarro victory.
"I lost in the first round the last two years and now to be making the quarter-finals is pretty insane," said Navarro.