Defending French Open champion Jelena Ostapenko lost her opening match to Ukraine’s Kateryna Kozlova at the season’s second major.
The fifth-seeded Ostapenko lost the first set 7-5 against Kozlova, making 29 unforced errors.
She followed that up losing 6–3 in the second. Ostapenko is only the sixth defending women’s champion to lose in the opening round at a major tournament.
Kozlova, who is No. 67 in the WTA rankings, earned her first victory against anyone ranked in the Top 30.