World No. 2 Sabalenka Crashes Out as Nikola Bartunkova Stuns Beijing; Alcaraz Reaches Japan Open Semis
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In an astonishing double shock that has blown the women's draw wide open at the National Tennis Center, World No. 2 and four-time Grand Slam champion Aryna Sabalenka was unceremoniously knocked out of the China Open in straight sets on Sunday, October 4, 2026. Succumbing to Czech Republic's 34th-ranked rising star Nikola Bartunkova 6-4, 6-3 in a ninety-minute third-round clash, Sabalenka followed newly crowned World No. 1 Elena Rybakina through the exit door, leaving the prestigious WTA-1000 tournament in Beijing completely stripped of its top two seeds within the very first week. Meanwhile, over in Tokyo, Spanish superstar Carlos Alcaraz maintained his dominant hard-court resurgence, securing a hard-fought berth in the Japan Open semifinals after Canadian rival Denis Shapovalov was forced to retire due to an acute hip injury.
Bartunkova Dismantles Sabalenka in Beijing: Top Two Seeds Eliminated in Opening Week
The Czech challenger capitalized on critical unforced errors to orchestrate the biggest upset of the tournament:
Stunning Straight-Sets Upset: 34th-ranked Nikola Bartunkova produced blistering baseline precision to defeat four-time major winner Aryna Sabalenka 6-4, 6-3 in just around an hour and a half of high-intensity tennis.
Break-Point Wastage: Sabalenka, who recently missed out on a third consecutive US Open title against Rybakina in New York, struggled to convert opportunities, squandering five crucial break-point chances in the opening set alone.
Beijing Quarterfinal Hoodoo Continues: With this early setback, the 28-year-old Belarusian power-hitter has once again failed to advance past the quarterfinal stage in the Chinese capital, extending a prolonged dry spell at the venue.
Both Top Seeds Depart Early: Sabalenka's elimination immediately followed the shock third-round exit of newly crowned World No. 1 Elena Rybakina on Saturday, blowing the bottom and top halves of the WTA-1000 draw wide open.
Next Round Opponent: Bartunkova advances to square off against 24-year-old Austrian qualifier Sinja Kraus, who breezed into the final eight by overpowering Ukraine's Dayana Yastremska 6-1, 6-4.
Carlos Alcaraz Battles Into Japan Open Semifinals: Shapovalov Retires with Hip Injury
In Tokyo, top seed Carlos Alcaraz continued to display championship grit as he pursues his title defense:
Return from Wrist Injury: Competing with aggressive momentum following a four-month layoff due to a wrist injury, Alcaraz booked his semifinal ticket at the ATP 500 Japan Open after 82 minutes of grueling court combat.
Shapovalov Forced to Concede: Quarterfinal adversary Denis Shapovalov mounted fierce resistance in the opening set, pushing the match into a tiebreak before an aggravated hip injury forced the Canadian to withdraw while trailing 7-6 (7-4), 2-1.
Clutch Set-Point Rescue: Shapovalov held a set point serving at 5-4 in the first set, but Alcaraz neutralized the threat with a pinpoint drop shot before running away with the tiebreak behind aggressive first-serve delivery.
Laver Cup Momentum Carried Forward: Alcaraz entered Tokyo directly on the heels of guiding Team Europe to the Laver Cup singles title with a victory over Taylor Fritz, sustaining his pristine match fitness.
All-Spanish Semifinal Showdown: Defending champion Alcaraz will now battle compatriot Jaume Munar in the penultimate round for a spot in the Tokyo final.
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