Iga Swiatek advances to Stuttgart quarterfinals, Coco Gauff out
STUTTGART: Top-ranked Iga Swiatek returned from a rib injury with a convincing 6-1, 6-4 win over Zheng Qinwen to reach the quarterfinals of the Porsche Grand Prix on Thursday as Coco Gauff suffered an upset loss to Anastasia Potapova.