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Sinner criticizes conditions at Cincinnati Masters 1000 but advances to quarters against Auger-Aliassime

Sinner
Foto: Sinner - Foto: Marco Iacobucci Epp / Shutterstock.com

Jannik Sinner, the world’s No. 1, advanced to the quarterfinals of the Cincinnati Masters 1000 in Ohio on Wednesday, August 13, 2025, after defeating Frenchman Adrian Mannarino in two sets, 6-4, 7-6 (4). The match, delayed nearly three hours due to rain, underscored the challenging conditions of the tournament, which Sinner openly criticized, noting the difficulty of playing high-quality tennis amid unpredictable weather changes. The Italian, seeking his third title of the season and a second consecutive Cincinnati crown, will face Canadian Felix Auger-Aliassime on Thursday, August 14, at 4 p.m. (Brasilia time). The victory marked Sinner’s ninth consecutive Masters 1000 quarterfinal, a feat previously achieved only by Roger Federer, Rafael Nadal, and Novak Djokovic. His performance reinforces his consistency, positioning him as a favorite for the title despite the obstacles posed by weather and the fast courts of the Lindner Family Tennis Center.

The match against Mannarino demanded tactical adjustments from the Italian, who faced an opponent known for his technical and unconventional style. The rain, which halted play in the second set, tested Sinner’s patience and focus, but he returned to the court determined to close out the match in a tiebreak. He emphasized the importance of staying mentally sharp in adverse conditions, a key factor in his continued success on the tour.

  • Weather conditions: Rain, wind, and sudden temperature shifts disrupted the match’s rhythm.
  • Sinner’s performance: Six aces, 81% points won on first serve, and 45 total service points.
  • Cincinnati history: As the defending champion, Sinner won the 2024 title against Frances Tiafoe.
  • Next challenge: Facing Auger-Aliassime, who has defeated him in both prior meetings.

Sinner now prepares for a crucial clash against Auger-Aliassime, an opponent who beat him in 2022 in both Madrid and Cincinnati. Sinner’s 2025 record of 29 wins and three losses makes him the favorite, but the head-to-head history calls for caution.

Sinner and Cincinnati’s weather challenges

Weather conditions in Cincinnati have been a recurring theme in Sinner’s comments. He described the tournament as uniquely challenging due to unpredictable shifts, with rain, wind, and sun alternating rapidly. During the Mannarino match, a nearly three-hour rain delay disrupted the game’s flow, which Sinner found mentally taxing. He noted that wind and humidity affect ball trajectory, complicating shot accuracy, particularly on serves.

  • Persistent rain: The three-hour delay required patience and tactical adjustments.
  • Wind: Impacts serve consistency and ball exchanges, per Sinner.
  • Sun and shade: Rapid light changes affect court visibility.
  • Mental preparation: Sinner stressed relaxing during forced breaks.

Despite these challenges, Sinner showed resilience, maintaining control in the second-set tiebreak. His adaptability has been key in his campaign, which includes wins over Daniel Elahi Galan (6-1, 6-1) and Gabriel Diallo (6-2, 7-6) in the tournament.

Head-to-head with Auger-Aliassime

The matchup with Felix Auger-Aliassime is one of the most anticipated quarterfinals. The Canadian, currently ranked No. 28, defeated Sinner in both prior encounters in 2022, by 6-1, 6-2 in Madrid and 2-6, 7-6 (1), 6-1 in Cincinnati. Those results, however, came before Sinner’s rise to No. 1 and his dominant form.

Sinner acknowledged the challenge, highlighting Auger-Aliassime’s aggressive style, which blends powerful serves with an attacking approach. The Canadian reached the quarterfinals after victories over Tomas Martin Etcheverry, Arthur Rinderknech (who retired), and Benjamin Bonzi, showing good form despite an inconsistent year.

  • Head-to-head: Auger-Aliassime leads 2-0.
  • Playing style: Strong serves and net play define the Canadian’s game.
  • Sinner’s form: The Italian has won 11 straight matches on hard courts in 2025.
  • Expectations: Analysts favor Sinner, but the history demands caution.

Cincinnati’s fast courts favor both players’ aggressive styles, but Sinner’s solid defense and ability to sustain long rallies could be decisive.

Path to the title

As the defending champion, Sinner is chasing a second straight Cincinnati title, which would further solidify his No. 1 ranking. His 2025 season has been stellar, with titles at the Australian Open and Wimbledon, plus finals in Rome and Roland Garros. Reaching the quarterfinals in nine consecutive Masters 1000 events places him alongside legends like Federer, Nadal, and Djokovic, a remarkable achievement at age 23.

The road to the final, however, is tough. Beyond Auger-Aliassime, potential opponents include Holger Rune, who faces Terence Atmane, or Carlos Alcaraz, a possible final opponent. Alcaraz, ranked No. 2, advanced with a convincing win over Luca Nardi (6-1, 6-4) and remains a constant threat, having beaten Sinner in the Roland Garros final this year.

  • Sinner’s 2025 titles: Australian Open and Wimbledon.
  • Alcaraz rivalry: He has won five of the last seven head-to-head matches.
  • Rune vs. Atmane: The Dane is favored, but Atmane upset Taylor Fritz.
  • US Open prep: Cincinnati is a key test before the final Grand Slam.

Rain’s impact on the tournament

Rain has been a defining factor in the 2025 Cincinnati Masters 1000, affecting not just Sinner’s match but others as well. The tournament organizers adjusted schedules, with some matches postponed, increasing players’ physical and mental strain. The fast courts, already demanding quick reflexes, become trickier with humidity, altering ball speed.

Sinner emphasized adapting quickly to changes, a skill he honed after his win over Gabriel Diallo, when he went straight to practice to refine his serve. Experts praised this dedication, comparing his mindset to that of Nadal and Djokovic, known for their attention to technical details.

  • Tactical adjustments: Sinner worked on his serve after five double faults against Diallo.
  • Rain’s impact: Delays force players to stay focused during long breaks.
  • Comparison to legends: Sinner’s dedication mirrors Federer, Nadal, and Djokovic.
  • Court conditions: Humidity complicates shot control.

US Open preparation

The Cincinnati Masters 1000 is the last major event before the US Open, starting August 25. For Sinner, it’s ideal preparation to defend his 2024 New York title. His ability to handle adverse conditions and maintain consistency on hard courts makes him a top contender for the Grand Slam.

The tournament also offers crucial ATP ranking points, and a strong run could strengthen his No. 1 position. His rivalry with Carlos Alcaraz, who has defeated him in major finals, adds intrigue to a potential Cincinnati final, serving as a preview for the US Open.

  • US Open 2024: Sinner won against Taylor Fritz, his first New York title.
  • Ranking points: Cincinnati’s champion earns 1,000 ATP points.
  • Alcaraz rivalry: Split two Grand Slam final meetings in 2025.
  • Physical prep: Sinner aims to avoid fatigue after long rain delays.

Sinner’s performance in Cincinnati signals his form for the year’s final Grand Slam. His ability to overcome tough conditions and stay focused positions him as a standout in the sport.