Swiatek will face Elina Svitolina, who sprung a surprise by knocking out fourth seed and last year's runner-up Jasmine Paolini, in the quarter-final. The 30-year-old from Ukraine saved three match points before winning 6-4 6-7 (6) 6-1 in another dramatic match.

Aryna Sabalenka and Iga Swiatek, who had 20 winners and 21 unforced errors in her win, have been in contrasting form.

PARIS — Defending champion Iga Swiatek joined No. 1-ranked Aryna Sabalenka in the fourth round of the French Open on Friday and neither player has dropped a set.