Swiatek into Cincinnati semi-finals as injured Rybakina retires

Iga Swiatek reached the semi-finals of the Cincinnati Open in the most unwelcome fashion on Thursday night, advancing when second seed Elena Rybakina was forced to retire. The Pole, the No 7 seed, was leading 4-1 when Rybakina, unable to continue, brought the quarter-final to an early end. Rybakina appeared to hurt herself during one of her service games, stopping almost immediately after…

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