Rafael Nadal and Novak Djokovic's French Open quarter-finals were postponed until Wednesday after torrential rain interrupted the first two women's last-eight ties in Paris.
Former world number one Caroline Wozniacki was leading 6-4 2-5 against Jelena Ostapenko when play was stopped at 14:30 BST on Tuesday.
France's Kristina Mladenovic was losing 6-4 1-1 to Swiss Timea Bacsinszky.
All four men's quarter-finals will now be played on Wednesday.
Fourth seed Nadal meets fellow Spaniard Pablo Carreno Busta as he aims to move a step closer to a record 10th title at Roland Garros.
Twelve-time Grand Slam winner Djokovic, who is seeded second, plays Austrian sixth seed Dominic Thiem.