Sabalenka knocked out in Cincinnati by Bejlek — WTA No.1 ranking at risk

World No.1 Aryna Sabalenka was knocked out in the fourth round of the WTA Cincinnati tournament, losing 6–7(7), 4–6 to Sara Bejlek. The defeat puts her top ranking at risk. Whether Sabalenka retains the No.1 spot may depend on the outcome of Iga Świątek's match against Jelena Rybakina.