Navarro stuns second seed Sabalenka at Indian Wells, Gauff cruises past Mertens

Navarro absorbed Sabalenka's powerful serve and converted four of her five break-point opportunities to defeat the reigning two-time Australian Open champion in windy conditions.

Navarro came out flying to grab the first set before Sabalenka raised her level in the second to force a decider.

The even-keeled Navarro kept her cool in the final set, fending off a break point and smacking a forehand winner for a crucial service hold and a 4-1 lead.

Navarro, seeded 23rd, broke the hard-hitting Belarusian for a fourth time on match point to book a quarter-final clash with ninth seed Maria Sakkari of Greece.

Sakkari, the 2022 runner-up, beat Frenchwoman Diane Parry 6-2, 3-6, 6-3.

"I'm feeling really good," Navarro said in an on-court interview in front of a supportive crowd.

"It's never easy coming out and playing an opponent like that who is so experienced and so talented. She made it really tough on me today but I was able to play some good tennis in the big moments.

"I just want to say thanks to everyone for coming out and cheering me on today."

With the win Navarro will break into the top 20 for the first time after the tournament and Sabalenka, who won her second Grand Slam crown in Melbourne Park in January, praised her opponent.

"Her potential is really great," Sabalenka told reporters.

"I think she has the potential to be in the top 10."

Coco Gauff dominated Elise Mertens to win 6-0, 6-2 on her 20th birthday and book her spot in the quarter-finals.

The dynamic American played her best tennis of the tournament so far, serving well and stepping into the court to overwhelm the Belgian 24th seed.

Mertens was unable to back up her win over Naomi Osaka in the previous round, hitting just four winners to 21 unforced errors in a match that lasted just over an hour.

Third seed Gauff saw her section of the draw open up after Sabalenka's defeat and will play unseeded Yue Yuan of China, who fought back from a set and a break down to beat Russian 11th seed Daria Kasatkina 4-6, 6-4, 6-3.

Yuan, who claimed her first WTA title in Texas this month, stunned compatriot and Australian Open runner-up Zheng Qinwen in the second round and will look for another upset to extend her nine-match winning run.