Elena Rybakina's bid to become world No.1 suffered a major setback after she retired injured against Iga Swiatek in the Cincinnati quarter-finals. With the US Open just days away, Rybakina now faces a race against time to recover from her left ankle injury.

Rybakina injured herself midway through the opening set of her Cincinnati quarterfinal against Iga Swiatek.

Elena Rybakina retires vs Iga Swiatek in Cincinnati with a left ankle issue, putting her US Open and World No.1 bid in doubt. MRI pending as Swiatek advances to semifinals.

Elena Rybakina is approaching a point that could change the way her career is remembered. The reigning Australian Open champion is currently No. 2 in the world and, with the WTA No.

Aryna Sabalenka's US Open preparations suffered another setback at the Cincinnati Open, as the Belarusian handed Sara Bejlek her first Top 10 victory while