Japan's Naomi Osaka roared into her first quarterfinal in 19 months with a 6-1, 6-0 victory over Latvia's Anastasija Sevastova in National Bank Open play on Sunday afternoon in Montreal.

So far, the early results are promising for the budding partnership between Osaka and Wiktorowski. Osaka defeated Ariana Arseneault in the first round of the WTA 1000 Montreal yesterday. However, Osaka will face much stiffer competition in the 13-seed Liudmila Samsonova tomorrow. Currently, Osaka is the World No. 49 with a record of 22-11.

Clara Tauson upset second-seeded Wimbledon champion Iga Swiatek 7-6 (1), 6-3 on Sunday night to reach the National Bank Open quarterfinals.