Carlos Alcaraz fought through a tense opening-set tiebreak to secure his place in the quarter‑finals of the Japan Open, edging out Italy's Matteo Arnaldi 7‑6 (8‑6), 6‑1 on Saturday. The Spanish prodigy demonstrated his trademark resilience, clawing back from a 2‑5 deficit in the tiebreak and fending off four set points before turning the momentum in his favor and ultimately taking the first set. Once the deadlock was broken, Alcaraz elevated his game in the second set, breaking Arnaldi twice to close out the match comfortably.
After the victory, the world No. 3 will meet Canadian Denis Shapovalov, who is ranked 46th globally, in the last eight. Shapovalov earned his quarter‑final berth by defeating Alejandro Tabilo 7‑5, 3‑6, 6‑4 earlier in the tournament.
"I just tried to stay there, point after point," Alcaraz explained after the match. "I changed how I played until that moment and it worked out. I'm just happy I got that first set. Matteo was playing great." The Japan Open featured several other compelling storylines.
In a separate quarter‑final qualifier, Czech hopeful Jiri Lehecka rallied from a set down to beat France's Ugo Humbert 5‑7, 6‑4, 6‑4, setting up a clash with Adolfo Daniel Vallejo Alvarez, who had eliminated Italian veteran Matteo Berrettini. Over at the China Open, former US Open champion Alexander Zverev cruised past wildcard Juncheng Shang 6‑0, 6‑3, positioning himself for a marquee quarter‑final showdown with Novak Djokovic.
Australian rising star Alex de Minaur, who had suffered an early exit at the US Open, rebounded with a three‑set win over France's Quentin Halys, 6‑3, 4‑6, 6‑2. His victory booked a last‑eight encounter with Russia's Andrey Rublev. Both players are eyeing valuable Race to Turin points, as they vie for the remaining spots at this year's ATP Finals.
Rublev himself secured his quarter‑final place by surviving a second‑set comeback from Roman Safiullin, prevailing 6‑2, 3‑6, 6‑4. Daniil Medvedev continued his strong form with a straight‑sets triumph over Jan‑Lennard Struff, 6‑4, 6‑3, and will face the winner of the Francisco Cerúndolo versus Jakub Mensík match in the next round.
On the women's side, after a three‑week hiatus following a semi‑final loss to Elena Rybakina at the US Open, Coco Gauff returned to competition at the China Open. She dispatched world No. 66 Camila Osorio 7‑6 (7‑4), 4‑6, 6‑2, surviving a break at 4‑5 in the second set and later fending off two match points in the third.
Gauff's win sets up a meeting with China's Xinran Sun. British contender Harriet Dart started brightly against 10th seed Iva Jović, taking the opening set, but was unable to maintain her momentum, eventually succumbing 2‑6, 6‑3, 6‑3.
In contrast, fellow Briton Sonay Kartal advanced comfortably, beating China's top‑ranked Xinyu Wang 6‑3, 6‑2, and could potentially face Rybakina if she overcomes Alina Charaeva in the subsequent round. Poland's Iga Świątek, fresh from a round‑of‑16 exit at the US Open, returned to the court and displayed dominant form, converting five break points to beat China's Xinyu Gao 6‑2, 6‑3.
Meanwhile, former world No. 2 Elina Svitolina fought back from a set down against Czech Katerina Siniaková, turning a 1‑6 deficit into a 1‑6, 6‑4, 6‑2 victory to move on to the next stage.
Fans can stream all matches without a contract via the NOW platform or the Sky Sports app, which carry live coverage of the ATP Japan Open, the WTA/ATP China Open, and the ATP 1000 Shanghai Masters. The tournament continues to deliver high‑octane tennis, with several top‑ranked players battling for crucial points as the season heads toward its climax.