Guadalajara Open: Kalinskaya makes last 16, defeating Mertens

Russian Anna Kalinskaya edged out Belgian Elise Mertens 6-4, 0-6, 7-5 to reach the last 16 of the Guadalajara Open at the Centro Panamericano de Tenis on Wednesday.

Kalinskaya, ranked No 73, will face Russian Daria Kasatkina, the No 7 seed, next.

In the previous round, the Russian beat Czech Barbora Krejcikova, the No 9 seed (6-3, 6-4). Mertens, ranked No 34, won against American qualifier Asia Muhammad (6-3, 6-2) in the first round.

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

• Coco Gauff (5) beat Elisabetta Cocciaretto (Q): 7-6 (1), 6-3
• Martina Trevisan beat Katerina Siniakova: 6-0, 4-6, 6-3
• Liudmila Samsonova beat Aryna Sabalenka (2): 6-4, 2-6, 6-2
• Danielle Collins (14) beat Magdalena Frech (Q): 6-3, 6-4
• Jelena Ostapenko (12) beat Eugenie Bouchard (WC): 7-5, 2-6, 6-1
• Caroline Garcia (6) beat Rebecca Marino (Q): 6-7 (2), 6-3, 7-6 (5)
• Daria Kasatkina beat Lin Zhu: 6-1, 6-2
• Maria Sakkari (4) beat Marta Kostyuk: 6-4, 6-4
• Bianca Andreescu beat Petra Kvitova (16): 3-6, 6-2, 6-0
• Paula Badosa vs. Victoria Azarenka : Wednesday in Guadalajara
• Belinda Bencic vs. Sloane Stephens : Wednesday in Guadalajara
• Ajla Tomljanovic vs. Madison Keys : Wednesday in Guadalajara
• Camila Osorio vs. Marie Bouzkova : Wednesday in Guadalajara
• Jessica Pegula vs. Elena Rybakina : Wednesday in Guadalajara
• Veronika Kudermetova vs. Donna Vekic : Wednesday in Guadalajara