Barbora Krejcikova is in position to become the first woman to sweep the French Open singles and doubles titles since American Mary Pierce pulled off the feat in 2000.
Krejcikova and Czech Republic countrymate Katerina Siniakova reached the doubles final with Friday's 6-1, 6-2 victory over Poland's Magda Linette and American Bernarda Pera.
The pair will face American Bethanie Mattek-Sands and Poland's Iga Swiatek in Sunday's final after that duo recorded a 6-3, 6-4 win over Romania's Irina-Camelia Begu and Argentina's Nadia Podoroska.
Krejcikova and Siniakova won the 2018 doubles title at Roland Garros. The duo also won the Wimbledon crown that year.
Krejcikova will face Russia's Anastasia Pavlyuchenkova in Saturday's singles final after her epic 7-5, 4-6, 9-7 semifinal victory over Maria Sakkari of Greece on Thursday.
Pierce defeated Conchita Martinez of Spain to win the singles title in 2000, and teamed with Switzerland's Martina Hingis to beat Spain's Virginia Ruano Pascual and Argentina's Paola Suarez in doubles.
Serena Williams, at Wimbledon in 2016, is the most recent player to sweep the singles and doubles finals at a Grand Slam tournament.
--Field Level Media