Aryna Sabalenka's Cincinnati Open title defense is over. The World No. 1 was eliminated by Elena Rybakina in the quarterfinals Aug. 15.

Defending champion Aryna Sabalenka was eliminated from the Cincinnati Open after a 6-1, 6-4 defeat to Elena Rybakina in the quarterfinals Friday. Rybakina was dominant in the opening set and served 11 aces as she wrapped up an impressive win in 1 hour,

Elena Rybakina stormed into her first Cincinnati Open semi-final on Friday with a commanding 6-1, 6-4 victory over defending champion Aryna Sabalenka, while five-time Grand Slam winner Carlos Alcaraz overcame a second-set lapse to defeat Andrey Rublev to reach the last four.