2-time defending champion Jessica Pegula eliminated in Montreal by 386th-ranked Sevastova
- Anastasija Sevastova, a 35-year-old from Latvia who is ranked 386th, broke the third-seeded Pegula six times on 10 chances
- Sevastova is the lowest-ranked player to beat a top-10 player since Angelique Kerber edged Jelena Ostapenko last year at Indian Wells