Japan's Naomi Osaka battled back from a set down to reach the second round of the French Open.
The top seed overcame Slovakia's Anna Karolina Schmiedlova 0-6, 7-6, 6-1.
She will next face Victoria Azarenka, who registered a 6-4, 7-6 win over 2017 champion Jelena Ostapenko.
Elsewhere, defending champion Simona Halep struggled in a 6-2, 3-6, 6-1 win over world number 47 Ajla Tomljanovic.
In the men’s competition, fifth seed Alexander Zverev needed four hours to beat Australia’s John Millman 7-6, 6-3, 2-6, 6-7, 6-3
Meanwhile, 40-year-old Ivo Karlovic became the oldest man to win a grand slam match since 1978.
The Croatian defeated Spain’s Feliciano Lopez 7-6, 7-5, 6-7, 7-5.

Clinical Sinner holds off wildcard Jodar to reach Madrid Open semis
LIV Golf touts 'strong momentum' despite New Orleans postponement
Baptiste's variety drags Sabalenka out of comfort zone in Madrid shock
FIFA to increase financial distribution to all 48 World Cup teams by 15%
Sabalenka stunned by Baptiste in Madrid Open quarter-finals
