Guadalajara Open: Kalinskaya makes last 16, defeating Mertens
Anna Kalinskaya edged out Elise Mertens 6-4, 0-6, 7-5 on Wednesday

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