The Ukrainian qualifier Lesia Tsurenko, ranked 54th, upset No. 9 Garbiñe Muguruza, 7-5, 6-1, in the Rogers Cup in Toronto. In other second-round matches, Daria Gavrilova beat seventh-seeded Lucie Safarova, 4-6, 7-5, 7-5; Polona Hercog topped 11th-seeded Ekaterina Makarova, 6-2, 6-7 (2), 7-5; and fourth-seeded Caroline Wozniacki fell to Belinda Bencic, 7-5, 7-5.
In the second round of the men’s tournament in Montreal, fourth-seeded Kei Nishikori defeated Pablo Andújar, 6-3, 6-3, for his ATP Tour-leading 27th hardcourt win of the year. Sixth-seeded Marin Cilic fell, 6-3, 6-4, to Bernard Tomic.