PARIS: Defending champion Iga Swiatek reached the French Open quarterfinals when her Ukrainian opponent Lesia Tsurenko retired unwell on Monday.
World No 1 Swiatek was 4-1 up in the opening set when Tsurenko called the physiotherapist and had her blood pressure checked.
After a five-minute break, the match resumed but Tsurenko threw in the towel after losing the following game.
Swiatek next faces American sixth seed Coco Gauff.