Guadalajara Open: Sakkari wins again (against Kostyuk) and moves into last 16

Greek Maria Sakkari, the No 4 seed, reached the last 16 of the Guadalajara Open by winning against Ukrainian Marta Kostyuk 6-4, 6-4 at the Centro Panamericano de Tenis on Tuesday night.

Sakkari, ranked No 6, will play the winner of the match between American Danielle Collins, the No 14 seed, and Pole qualifier Magdalena Frech next.

Maria Sakkari has lost her last three matches. The last time she won her last match against a Top-5 opponent was in Guadalajara, at the WTA Finals last season against Aryna Sabalenka in the Round Robin.

In the previous round, Kostyuk, ranked No 58, defeated Belarusian Aliaksandra Sasnovich (6-1, 6-3). She has lost her nine career matches against a Top-10 opponent, including five this season.

Guadalajara WTA 1000, other second-round matches (Centro Panamericano de Tenis, hard, USD 2.527.250, most recent results first):

• Daria Kasatkina (7) beat Lin Zhu: 6-1, 6-2
• Bianca Andreescu beat Petra Kvitova (16): 3-6, 6-2, 6-0
• Paula Badosa vs. Victoria Azarenka
• Belinda Bencic vs. Sloane Stephens
• Ajla Tomljanovic vs. Madison Keys
• Camila Osorio vs. Marie Bouzkova
• Jessica Pegula vs. Elena Rybakina
• Veronika Kudermetova vs. Donna Vekic
• Elise Mertens vs. Anna Kalinskaya
• Elisabetta Cocciaretto vs. Coco Gauff
• Katerina Siniakova vs. Martina Trevisan
• Liudmila Samsonova vs. Aryna Sabalenka
• Danielle Collins vs. Magdalena Frech
• Eugenie Bouchard vs. Jelena Ostapenko
• Rebecca Marino vs. Caroline Garcia