The 2025 Cincinnati Open concluded on Monday, as the No. 2 player in the world, Carlos Alcaraz, took down the world No. 1 player, Jannik Sinner, and the rivalry

Carlos Alcaraz won the Cincinnati Open on Monday after Jannik Sinner was forced to retire due to illness. Alcaraz was already up big on Sinner, the World No. 1, when he had to retire. Sinner told the crowd that he hoped to play after feeling bad overnight, but he couldn't make it work.

Carlos Alcaraz's Cincinnati Open quarter-final match against Andrey Rublev was halted for an emergency in the stands. The Spaniard held to lead 1-0 in the deciding set when chair umpire Mohamed Lahyani realised someone in the crowd was struggling, and raced over to bring them water and an umbrella.

Match recaps, video highlights, and quotes from Friday afternoon's action in the Cincinnati Open quarterfinals.

After defeating Andrey Rublev, Carlos Alcaraz advanced to the Cincinnati Open semifinals and joined an exclusive group alongside Rafael Nadal following a historic achievement.

Carlos Alcaraz and Emma Raducanu are set to team up in the mixed doubles at the U.S. Open, but the new-look event could be in doubt after a scheduling nightmare in Cincinnati

Ben Shelton chose not to rest, playing in the Canada ATP Tour 1000 tournament and then Cincinnati leading up to the U.S. Open

Carlos Alcaraz advanced to the quarterfinals of the Cincinnati Open, matching a historic milestone previously achieved only by Rafael Nadal and Pete Sampras.