Jannik Sinner retired from the Cincinnati Open final due to illness. He began feeling unwell the day before the match and started the final with flu-like symptoms and a high fever, around 38 degrees Celsius (100.4 degrees Fahrenheit). Despite his hope to improve, his condition worsened during the match, leading to his retirement after trailing 5-0 in the first set against Carlos Alcaraz. Sinner apologized to the fans and revealed he could not continue because he "couldn't handle more." This forced withdrawal also caused him to pull out of the US Open mixed doubles event shortly after. Sinner's illness, combined with the extreme heat during the tournament and his physical inability, were the main reasons for his retirement from the Cincinnati Open final. He expressed the need for a couple of days of recovery before aiming to be ready for the US Open singles event, his main goal at the time. His withdrawal saddened both fans and his rival Alcaraz, who offered support and wished him a quick recovery.
