Preview Indian Wells 2026 Day Seven | Sabalenka and Osaka headline last-16 ties with Sinner-Fonseca and Anisimova-Mboko braced for first-time meetings

The last-16 stage of Indian Wells is upon us, with a first bout of fixtures on display in the Californian desert, ready to be enjoyed by eager tennis fans as the players hunt for coveted quarterfinal spots.

The talent on court continues to be of the highest order, with the top seeds starting to get in their rhythm as they set their sights on the business end of the tournament, with just the title enough to satisfy them in this 1000 tournament.

Highly touted as the future of tennis, Joao Fonseca is looking to climb up the order and compete with the best players in the world. He has the chance to prove that he has what it takes to be among the best, with Jannik Sinner standing in his way of a maiden Masters 1000 fourth-round appearance.

Sinner is a five-time Masters 1000 champion, all of them coming on hardcourt in five different competitions. The only one not on his list – Indian Wells. A two-time semi-finalist coming into this event, the world number two did not feature last year due to a suspension, but is fired up and raring to get back to competing in the Sunshine swing. While his start to the year has been disappointing by his own standards, two impressive performances against Dalibor Svricina and Denis Shapovalov see him comfortably progress through the early stages with no fuss.

The same could also be said for Fonseca if you do not include his second-round match. His opening tussle in California was a tight two-set win over Zizou Bergs. He then fell a set down to Karen Khachanov before overcoming two match points to mount an impressive comeback. The 19-year-old dispatched Tommy Paul with a dominant showing. Those early-season woes seem to be behind him now as he looks towards taking on the four-time Grand Slam champion.

2017 was the last time Frances Tiafoe bettered Alexander Zverev. Nine times they have met, and eight times Zverev has left the court with a smile on his face, last competing against each other at the 2024 Laver Cup.

Zverev has been a mixed bag at the start of the year. The Australian Open was a huge step in the right direction despite the frustration of throwing away a possible chance for a second final on the spin. He then backed this up with a damaging defeat in the last-16 of the Mexican Open, deflecting that positive momentum. In Indian Wells, he proved too good for Matteo Berrettini before coming through a tight battle against Brandon Nakashima.

Another very tricky American is his reward in the third round, with Tiafoe determined to get back on track in 2026. He took the last part of 2025 off to focus on his preparations for this year, with a rise up the rankings his aim. On the cusp of the top 20 going into this tournament, he is drifting towards the top of a wave after a final in Acapulco. He would get his revenge on Flavio Cobolli in California just after taking down Jenson Brooksby, dropping just nine games in those matchups.

Already seeing each other for a second time in 2026, Felix Auger-Aliassime was the man on top in the Open Occitanie quarterfinal on the way to the title. He followed that title win with a final defeat in the ABN AMRO Open and a semi-final showing in Dubai. His form has been electric this year, continuing from the last few months of 2025.

Fils is no slouch. The Frenchman is back in the flow after a back injury kept him on the sidelines for an extended period of time. A Qatar Open final is great progress, albeit he was on the receiving end of a trouncing from the world number one. Wins against Dino Prizmic and Marton Fucsovics, suffering defeats. He will be wary of the Canadian, who is looking for another French victim after defeating Gael Monfils. His latest win came against fellow Canadian Gabriel Diallo, who pushed him hard but was unable to get the result intended.

The other ATP round-of-16 being played out on day seven is between Learner Tien and Alejandro Davidovich Fokina. The Spaniard is yet to get his hands on a title, which is surprising considering the calibre of player he is. He will be hoping for a deep run in Indian Wells to get him back get back on form. Jakub Mensik promised to be a tough third-round match, but Davidovich Fokina prevented a very youthful matchup by taking down the Miami Open champion in three sets.

A clash between Mensik and Ben Shelton was probably predicted by many, but the fellow Australian Open quarterfinalist had other ideas. Continuing in fine form, many have noted the American as a huge talent not just for the future, but now. This was proved once again after he dented Shelton’s hopes for more Masters 1000 glory with a terrific win.

As put by the world number one Aryna Sabalenka ahead of her clash against Naomi Osaka: “It will be a fashion show, then a crazy match.”

One thing is for certain: it will be a match between two powerhouses of the WTA Tour. Sabalenka has confirmed herself as the frontrunner, with her consistency to go deep in the biggest tournaments in the world beyond ridiculous. To win them, however, has not been great. In the last two years, she has won just one of a possible four Grand Slam finals, as well as losing the WTA Finals. Her losing final tag can be carried here too, with a brace of defeats at the last hurdle in 2023 and last year to Mirra Andreeva. The world number one is looking to tick off another WTA 1000 title off her list and has looked good so far, routing Himeno Sakatsume and Jaqueline Cristian.

A second Japanese player will be her next challenge, with Osaka previously being able to get over the line in this event. She proved too good for Daria Kasatkina back in 2018 as she began to rise through the ranks. While her reign of terror at the top is a distant memory, she is still looking for that prior success, and there have been times where she has rolled back the years, with the Canadian Open final and US Open semi-final runs all prime examples. The four-time Grand Slam champion has taken down Victoria Jimenez Kasintseva and Camila Osorio to book a date with the current world number one for the first time on the WTA Tour since the 2018 US Open, won by the eventual winner Osaka.

Two breakthrough talents from last year are finally drawn together. Amanda Anisimova won a brace of WTA 1000 titles in 2025, as well as reaching the final of two Grand Slams, both resulting in defeats. The world number six senses an opportunity to gain some places with a brace of tournaments on home soil and is so far not wasting the opportunity to capitalise. After losing the first set 7-5 against Anna Blinkova, she dropped just three games in the next three sets as she disposed of the Russian before emphatically trouncing Emma Raducanu.

Victoria Mboko burst onto the scene after quietly having a very decent breakthrough, making sure everyone knew who she was when winning the Canadian Open in a hugely unexpected but incredible achievement. She has already reached two finals this year, losing the Adelaide International and Qatar Open at the last hurdle. She is in blistering form as she looks to take down a fourth top 10 player in 2026 alone.

On paper, Jasmine Paolini should be the overwhelming favourite against Talia Gisbon, but tennis rarely works out as planned. This can be shown at the prior Merida Open where the Italian wasthe only seed remaining at the semi-final stage, looking almost certain to add a fourth WTA title to her catalogue. She was defeated by Cristina Bucsa in the semi-final in a hugely disappointing result. So far in California, this form has been turned around with three-set wins over Anastasia Potapova and Ajla Tomljanovic.

The two-time Grand Slam champion senses that a spot in the quarterfinal stages is on the line, but so does Gibson, who is having an insane week. The qualifier has not only picked up a first WTA 1000 win, coming against Ann Li, but she has backed it up with terrific results against Ekaterina Alexandrova and Clara Tauson, putting her in a beneficial spot to face Paolini. The Aussie is destined to debut in the top 100 in the world once this tournament concludes, but it is yet to be seen where.

In the fourth WTA tie on day seven, Linda Noskova is looking to continue to make an impact on the WTA Tour. She went on to reach the final last year in the China Open, losing to Anisimova in what was a very promising campaign. She has not been at her absolute best yet this season, but the time for change could be now. She began Indian Wells with a solid victory over Jessica Bouzas Maneiro before extracting revenge on Sorana Cirstea for her defeat in Dubai, coming back to win a very tight match.

It will not get much easier, with Alexandra Eala not her only opponent, but the fans the extremely popular 20-year-old will bring with her. The 20-year-old has hit a rich vein of form after making it to the Dubai last-eight. She lost out to Gauff in a rough result but got one over the two-time champion with the fortune of her retiring. She did have a hefty lead, with the Filipina looking to put herself in a great position for the upcoming Miami Open, where she has a semi-final to defend in terms of ranking points.