(AP) — There will be a first-time women’s champion at the French Open this year, and two Ukrainian players are among the strongest contenders.

Undefeated this season on clay, 15th-seeded Marta Kostyuk showed her strong credentials as she reached the quarterfinals in Paris for the first time on Sunday by taking out four-time champion Iga Swiatek 7-5, 6-1 and ruining her birthday.

She will be up against her compatriot Elina Svitolina next, ensuring there will be an Ukrainian woman semifinalist at Roland Garros for the first time in the professional era (1968). The seventh-seeded Svitolina rallied past Belinda Bencic 4-6, 6-4, 6-0.