Wimbledon champion Iga Swiatek became the latest seed to fall at the Canadian Open as she suffered a surprise defeat by Clara Tauson in the fourth round .

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.

Naomi Osaka powered into her first National Bank Open semifinal, beating No. 10 seed Elina Svitolina 6-2, 6-2 on Tuesday night