19/03/2024
World number two Aryna Sabalenka fell to a surprise defeat by Emma Navarro in the fourth round of Indian Wells.
Belarusian Sabalenka, who successfully defended her Australian Open title in January, lost 6-3 3-6 6-2 to the 23rd seed.
Navarro was cheered on by the California crowd as she reached her first WTA 1000 quarter-final.
Fellow American and third seed Coco Gauff claimed a 6-0 6-2 win over Belgium's Elise Mertens.
Playing on her 20th birthday, 2023 US Open champion Gauff wrapped up the first set in 25 minutes.
Mertens finally got on the board with a break and held serve to level the second set at 2-2, but Gauff regained control and won four games in a row to reach the last eight for a second straight year.
"I feel really good. That's my best match of the tournament so far and I'm obviously happy to get the win on my birthday," Gauff told Sky Sports.
Gauff and Navarro are bidding to become the first American women to win at Indian Wells since Serena Williams in 2001.
Gauff will play China's Yuan Yue, who beat Russian 11th seed Daria Kasatkina 4-6 6-4 6-3, in the semi-finals.
Navarro faces Greek ninth seed Maria Sakkari, a 6-2 3-6 6-3 winner over France's Diane Parry.