Defending champion Aryna Sabalenka falls to a 6-1 6-4 defeat by Elena Rybakina in the quarter-finals of the Cincinnati Open.

World No. 1 and defending Cincinnati Open champion Aryna Sabalenka beat Emma Raducanu in one of the longest matches in tournament history Aug. 11.

Alcaraz will face the winner of Ben Shelton and Alexander Zverev in the semifinals on Saturday, August 16. The Cincinnati Open runs through August 18. Stay locked into Sports Illustrated's Serve on SI for all the most important news from the tennis court and beyond.

Aug 11 (Reuters) - World number one Aryna Sabalenka kept her Cincinnati Open title defence alive by claiming a 7-6 (3) 4-6 7-6 (5) victory over Emma Raducanu in a marathon third-round clash on Monday, while men's top seed Jannik Sinner overcame Canadian Gabriel Diallo.

Max Mirnyi won the 1998 U.S. Open and Wimbledon mixed doubles titles with Serena Williams and lost in the finals of the 1999 Australian Open. With Williams. Miryni joined the staff of Aryna Sabalenka in January.

World number one Aryna Sabalenka and second-ranked Coco Gauff were sent crashing out of the ATP-WTA Cincinnati Open on Friday as Carlos Alcaraz fought off a fierce challenge from Andrey Rublev to reach the semi-finals. Top seed and defending champion Sabalenka had no answer for Elena Rybakina, falling to the 2022 Wimbledon champion 6-1, 6-4.

Ten seeded players were in action during the Cincinnati Open quarterfinals Aug. 15. Here's how the action unfolded in Mason.

Aryna Sabalenka became the second player to cause a stir with their choice of water bottle at the Cincinnati Open. Earlier this week, Carlos Alcaraz got into an argument with chair umpire Greg Allensworth when he was told off for drinking from reusable Evian bottles,