Stuttgart Open: Zheng books spot in second round

Chinese Qinwen Zheng, the No 5 seed, won against Romanian Sorana Cirstea 6-2, 6-3 to advance to the second round of the Stuttgart Open at the Porsche-Arena on Tuesday.

Zheng, ranked No 7, will face the winner of the match between Ukrainian Marta Kostyuk and German wildcard Laura Siegemund next.

Stuttgart WTA 500, other first-round results (Porsche-Arena, clay, USD 802.237, most recent results first):

• Liudmila Samsonova vs. Anastasia Potapova
• Marta Kostyuk vs. Laura Siegemund
• Ekaterina Alexandrova vs. Ons Jabeur
• Emma Raducanu vs. Angelique Kerber
• Linda Noskova vs. Jelena Ostapenko
• Tatjana Maria vs. Elise Mertens
• Marketa Vondrousova vs. Donna Vekic
• Jasmine Paolini beat Sara Errani (Q): 6-1, 6-0
• Veronika Kudermetova beat Barbora Krejcikova: 5-7, 6-4, 6-4
• Paula Badosa beat Diana Shnaider (Q): 6-3, 6-4
• Sachia Vickery (Q) beat Aliaksandra Sasnovich (Q): 7-6 (2), 7-5