Carlos Alcaraz was crowned Cincinnati Open champion after Jannik Sinner was forced to retire in the first set of their final, with the Spaniard quick to comfort his rival

Sinner retired with apparent illness in the first set of Monday's Cincinnati Open final against Alcaraz after digging a 5-0 deficit. Sinner remained on the court for the trophy ceremony and addressed his condition while speaking with the crowd. He didn't offer specifics, but said that he "didn't feel great."

Carlos Alcaraz won his first Cincinnati Open title after Jannik Sinner retired midway through the final with illness. Sinner's withdrawal raises doubts about his readiness for the US Open, while Alcaraz prepares to compete in mixed doubles with Emma Raducanu.