Start Time: TBD on Thursday, March 11 (check back for updates)

The rematch between Aryna Sabalenka and 19-year-old Victoria Mboko arrives with clear storyline: an established power player against an emerging counter-puncher who has learned quickly since their first meeting. In Melbourne, Sabalenka took control early, bullying Mboko through a 6-1 opening set, but the Canadian adjusted and pushed the second set to a tiebreak.

Mboko has carried that progress into the weeks that followed. In the two months since Australia she reached a 1000 final in Doha and climbed from No. 18 to No. 10. She says she can’t quite believe she’s in the Top 10 already, but she’s playing like she belongs. On Tuesday night she defended that form by dispatching Amanda Anisimova in two quick sets.

Sabalenka, meanwhile, showed sharp baseline command in her most recent match, overpowering Naomi Osaka in two impressive sets on Tuesday. Her ability to dictate from the backcourt and finish points remains the central challenge for Mboko.

Mboko’s strengths are clear: speed and counter-punching power that can trouble heavy hitters. Her willingness to adapt after the Australian Open and her run in Doha suggest she will not be intimidated. Still, Sabalenka’s combination of aggression and ball-striking typically forces opponents into errors and limits the time they have to impose their game.

This promises to be a competitive quarterfinal at the BNP Paribas Open, with Mboko likely to extend rallies and test Sabalenka’s patience. Ultimately, experience and the ability to close points favor the top seed. I’ll say it will take her another lesson from the WTA’s best before she’s ready to beat her. Winner: Sabalenka

All eight singles quarterfinals at the BNP Paribas Open take place Thursday, March 11.

Start Time: TBD on Thursday, March 11 (check back for updates)

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Learner Tien, just 20, has been playing like a seasoned competitor at Indian Wells. He is 4-0 in tiebreakers at the event and has out-dueled two more experienced opponents, Ben Shelton and Alejandro Davidovich Fokina, in three-set matches. Against Davidovich Fokina he even saved a match point with an acutely-angled crosscourt slice forehand pass.

That string of results and the crowd support that has followed him at Indian Wells set the stage for a tough quarterfinal against the second seed, Jannik Sinner. Their only prior meeting came last fall in Beijing, where Sinner won 6-2, 6-2. Still, this is a different setting and Tien has clearly improved since then.

Tien’s serve, once a relative weakness, has climbed to as high as 125 MPH. He also carries more power behind swings that were already praised for their feel and intelligence. Those developments explain why he has extended matches against higher-ranked opponents and thrived in tight moments.

Sinner presents a contrasting challenge. The more pace and aggression opponents bring, the more Sinner tends to return. He arrives after a taxing match of his own, a two-tiebreaker test against Joao Fonseca, and the latest encounter suggests he is battle-ready.

On balance, Tien’s growth and the crowd’s energy make this a compelling matchup, but Sinner’s consistency under pressure and his recent form keep him the favorite to advance.

Winner: Sinner

Start Time: TBD on Thursday, March 11 (check back for updates)

This quarterfinal will be the seventh meeting between Alexander Zverev and Arthur Fils, a rivalry that has already produced six matches. Fils is 21 and has pushed the German across those earlier encounters. “Sascha, we know each other very good,” Fils says.

Zverev took the first two meetings, and the pair have split the last four. In Miami last year Fils defeated Zverev 6-4 in the third set, the most recent indicator of how tight their matches can be.

The pair meet for the first time in 2026, with each player carrying adjustments into the match. Zverev, typically more cautious, has publicly decided to play more aggressively this season even if that approach invites occasional losses. Fils has shortened his forehand backswing and says he is prepared to trade some power to gain a quicker stroke. “In my case, it’s OK,” Fils says.

Fils arrives having recovered from a dramatic moment earlier in the week. On Tuesday he rallied from 0-5 down in the second-set tiebreaker to beat ninth-ranked Felix Auger Aliassime. Zverev is fourth-ranked and will offer a stern test of whether Fils can sustain his heavy pace over an entire match.

Tactically this one could hinge on Zverev’s willingness to absorb and redirect pace. If he chooses to blunt Fils’s power rather than outgun him, Zverev may be able to control the match even without maximum aggression. The prediction here is that Zverev, in good form and adapting his game plan, will find a way through. Winner: Zverev

All eight singles quarterfinals at the BNP Paribas Open take place Thursday, March 11.

TBD (check back for updates)

TBD (check back for updates)

TBD (check back for updates)