AdvertisementAdvertisementAug 18, 2025; Cincinnati, OH, USA; Carlos Alcaraz (ESP) poses for a photo with the Rookwood Cup after his match against Jannik Sinner (ITA) during the Cincinnati Open at the Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-Imagn ImagesAug 18, 2025; Cincinnati, OH, USA; Jannik Sinner (ITA) and Carlos Alcaraz (ESP) pose for a photo after their match during the Cincinnati Open at the Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-Imagn ImagesAug 18, 2025; Cincinnati, OH, USA; Jannik Sinner (ITA) sits on his bench after retiring from his match against Carlos Alcaraz (ESP) during the Cincinnati Open at the Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-Imagn ImagesAug 18, 2025; Cincinnati, OH, USA; Jannik Sinner (ITA), left, talks with Carlos Alcaraz (ESP) after retiring from their match during the Cincinnati Open at the Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-Imagn Images19 Aug 2025 04:19AM Bookmark Bookmark WhatsApp Telegram Facebook Twitter Email LinkedInRead a summary of this article on FAST.Get bite-sized news via a newcards interface. Give it a try.Click here to return to FAST Tap here to return to FASTFAST Carlos Alcaraz won the Cincinnati Open after top seed Jannik Sinner retired while trailing 5-0 in the first set of their final on Monday.The Spanish second seed collected his third Masters 1000 title of the season, having won in Monte Carlo and Rome.Sinner, who looked uncomfortable early on in the sweltering conditions, pulled out after 23 minutes of play, raising concern about his fitness just days before he is due to begin the defence of his U.S. Open title.Singles action at the hardcourt major begins on Sunday.It was also unclear whether the Italian would be fit enough to partner Katerina Siniakova in the revamped mixed doubles event at Flushing Meadows which is due to take place on Tuesday and Wednesday.Source: ReutersNewsletterRecommended ReadSubscribe to CNA's Recommended ReadA single handpicked story that we think you shouldn't miss. Just one a day.Sign up for our newslettersGet our pick of top stories and thought-provoking articles in your inboxSubscribe hereGet the CNA appStay updated with notifications for breaking news and our best storiesDownload hereGet WhatsApp alertsJoin our channel for the top reads for the day on your preferred chat appJoin hereAlso worth readingContent is loading...Expand to read the full storyGet bite-sized news via a newcards interface. Give it a try.Click here to return to FAST Tap here to return to FASTFAST