Seventh-seeded Serb Ivanovic defeated Russian ninth seed Ekaterina Makarova, a semi-finalist at the Australian Open in January, 7-5 3-6 6-1 to book her eighth career Grand Slam quarter-final.
Watched once again by her boyfriend Bastian Schweinsteiger,??Germany’s World Cup-winning football star, the 27-year-old Ivanovic shrugged off a two-and-a-half-hour rain stoppage to secure her third three-set win in four rounds in Paris.
The 20-year-old Svitolina beat fellow former Roland Garros junior champion Alize Cornet on a windy, chilly Court Philippe Chatrier 6-2 7-6 (11/9).
Svitolina, seeded 19, is only the second Ukrainian woman to reach a Grand Slam quarter-final after Kateryna Bondarenko made the last eight at the 2009 US Open.
It was Svitolina’s first win over Cornet in three meetings and the result ended French hopes in the women’s singles for another year.
She displayed nerves of steel to achieve victory, failing to serve out the tie in the 10th game of the second set and then allowing five match points to slip through her fingers.
However, she secured victory on her sixth match point when Cornet went long with a backhand, her 42nd unforced error of the tie.