Iga Swiatek of Poland plays a forehand during the match against Anastasia Potapova during Day 3 of the Cincinnati Open at the Lindner Family Tennis Center. AFP
The 27th-ranked Ukrainian cited a right wrist injury for the pullout, which came a day after six-time Grand Slam winner Swiatek, seeded third, advanced to the third round with the loss of just five games.
Jelena Ostapenko, the 2017 Roland Garros champion, also benefited from a walkover as Camila Osorio withdrew with an abdominal injury.
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