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US Open 2025 Day 9 recap: Naomi Osaka outclasses Coco Gauff after wins for Iga Swiatek and Felix Auger-Aliassime; Jannik Sinner overnight
The Day 9 action at the 2025 US Open kicks off at Arthur Ashe stadium from 16:30 BST as 15th seed Andrey Rublev meets 25th seed Felix Auger-Aliassime. That match is followed by the stand-out encounter of the day as former US Open champions Coco Gauff and Naomi Osaka lock horns. Over at Louis Armstrong Stadium, second seed Iga Swiatek is second up, while Jannik Sinner headlines the night session.
By Paul Hassall | Updated 01/09/2025 at 20:41 GMT+1
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17:07
RUBLEV 3-2 AUGER-ALIASSIME
FAA shrugs off a thunderbolt forehand return winner at 40-0 to quickly tick off a hold to 15.
17:04
RUBLEV 3-1 AUGER-ALIASSIME
Rublev consolidates with a dominant hold to 15 and is playing like a man who knows a 7-1 H2H game-plan gives him a huge opportunity here.
What can Felix do to try and change that narrative?
17:00
BREAK! – RUBLEV 2-1 AUGER-ALIASSIME
Andrey clearly has a good read on FAA’s serve and his lightning returns pay dividends.
One ferocious crosscourt return winner via that trusty forehand tees up the break point and the Russian ruthlessly converts to seize the early initiative.
16:57
THE END OF THE ROAD FOR RIEDI?
The Swiss underdog needs to find something special again to turn this around...
16:53
RUBLEV 1-1 AUGER-ALIASSIME
It’s a similar story for Andrey but he comes up trumps from Pulp (30-30) as he arrows a lovely backhand down the line en route to the hold.
16:48
RUBLEV 0-1 AUGER-ALIASSIME
FAA finds his first serve in the nick of time, firing an ace down the T to seal the hold from 15-30 down.
16:35
WHO IS LEANDRO RIEDI?
The 23-year-old Swiss qualifier made waves by hitting back from two sets down to stun 19th seed Francisco Cerundolo.
This is the world number 435's first appearance in the round of 16 of a major and he is bidding to become the only man from his country - other than Roger Federer and Stan Wawrinka - to reach the last eight at a Grand Slam this century.
LATEST: De Minaur 5-3 Riedi
16:30
AROUND THE GROUNDS - DEMON HITS THE FRONT
The first R4 match of the day is underway on court at Louis Armstrong Stadium and eighth seed Alex de Minaur is a break up on Swiss world number 435, Leandro Riedi.
LATEST: De Minaur 4-2 Riedi
16:25
COMING UP AT ARTHUR ASHE STADIUM
World No. 15 Andrey Rublev will be confident of securing an 11th Grand Slam quarter-final when he faces Felix Auger-Aliassime.
The Russian holds a 7-1 lead over the Canadian in the H2H, but FAA does come into their ninth meeting buoyed by a shock four-set triumph over World No. 3 Zverev last time out.
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Highlights: Swiatek advances to last 16 as Zverev crashes out
Video credit: SNTV
16:20
COULD ALEXANDER BUBLIK BE A DARK HORSE FOR THE SHOCK LATER?
The Kazakhstani has been in sensational form in 2025 and has won two of his last three encounters with Jannik Sinner.
The maverick world number 24 won in Halle following the Italian's convincing victory at the French Open.
16:10
OVERNIGHT ROUND-UP
Reigning champion Arnya Sabalenka eased into the last eight while Novak Djokovic made short work of Jan-Lennard Struff.
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Highlights: Djokovic and Sabalenka both make it through to quarter-finals
Video credit: SNTV
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16:05
VIDEO: THE BEST OF THE DAY 8 ACTION
Barbora Krejcikova was the definition of 'clutch' as she saved a plethora of match points to somehow hit back and beat Taylor Townsend.
Elsewhere, Carlos Alcaraz was in scintillating form as he maintained his push for a second US Open crown
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Highlights: Alcaraz storms through, Krejcikova digs deep to knock out Townsend
Video credit: SNTV
Watch and stream top tennis action live and on demand on TNT Sports and discovery+
16:00
GOOD AFTERNOON
Hello and welcome to our Day 9 updates from the 2025 US Open.
The action kicks off at Arthur Ashe stadium from 16:30 BST as 15th seed Andrey Rublev meets 25th seed Felix Auger-Aliassime.
That match is followed by the stand-out encounter of the day as former US Open champions Coco Gauff and Naomi Osaka lock horns.
Over at Louis Armstrong Stadium, second seed Iga Swiatek is second up against Ekaterina Alexandrova while Jannik Sinner v Alexander Bublik headlines the New York night session (from midnight UK time).