World number 4 Paula Badosa retired in the third round of Roland-Garros on Saturday when she was trailing 6-3, 2-1 by Russian Veronika Kudermetova. The Spaniard, who had requested a medical break for right knee pain late in the first set, threw in the towel after being broken in the second. With her retirement, world number 1 Iga Swiatek is the sole survivor of the top 10 heading into week two.