Day nine of the US Open 2026 brings a packed schedule of fourth-round action across the men's and women's draws.
On Armstrong, Mirra Andreeva, now a grand slam champion, faces Anastasia Potapova. Andreeva has the potential to win multiple majors, but she faces a tough test against Potapova, who eliminated Coco Gauff in Paris and Amanda Anisimova in the previous round here. If Potapova's aggressive playing style carries over from those victories, the match promises high-quality tennis.
Opening on Ashe, half an hour later, Iga Swiatek, winner in 2022, has yet to drop a set in the tournament and may have rediscovered her best form. Her opponent, Qinwen Zheng, will arrive full of confidence after rallying from 0-5 down in the third set to defeat Madison Keys.
The most anticipated match of the day comes in the second wave of singles contests, where Naomi Osaka, twice a champion here, takes on Australian Open winner Elena Rybakina, who could claim the world No 1 ranking with the right results. It has been some time since Osaka last threatened to add to her four majors, but her talent remains such that she is capable of going deep in any draw and beating any opponent on a given day.
In the men's competition, attention turns to Alexander Blockx, the 21-year-old Belgian, playing the biggest match of his career so far. He dismissed Flavio Cobolli in round three, recovering from a set down to win 3-0 in the remaining sets, and will regard Francisco Cerundolo as a beatable opponent.
Later, Arthur Gea, also 21, who gained attention by defeating Jiri Lehecka in Melbourne, faces Botic van der Zandschulp, whose powerful serve has already accounted for two seeds in Zizou Bergs and Alex de Minaur. That match is scheduled for Grandstand, while on Armstrong, Karen Khachanov, powerful but limited in touch and mobility, meets his stylistic opposite, Learner Tien, who lacks power but compensates with finesse and speed. Picking winners is difficult, but the depth and variety of these matchups promise an entertaining day of tennis.
Read next
Courtney Lawes 'not worried about legacy' as he aims to earn England return
Courtney Lawes was not anticipating inclusion in Steve Borthwick's pre-season England squad over the weekend. While the 37-year-old has indicated that his return to the Premiership with Sale Sharks is largely driven by his ambition to feature in a fifth World Cup next year, much
Wolff: Antonelli's Italian GP win feels like racing an AI agent in title fight
Kimi Antonelli has drawn comparisons to Formula One greats after a remarkable victory at the Italian Grand Prix, where he recovered from 19th on the grid to take the flag.
Mercedes team principal Toto Wolff cited the win as similar to some of the best achieved by seven-time champion
Could influencer culture, marijuana use, and mid-match chatter ruin the US Open?
The first thing you notice while sitting in the upper tiers of Arthur Ashe Stadium is the noise. A persistent exterior hum filters up from ground level, fed by the massive ventilation and cooling units that sit outside the stadium, the clack of the Long Island Rail Road to the