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.

Spain leave out Real Madrid players as Barcelona dominate World Cup squad
Emotional Wawrinka bows out of final French Open
Allegri fired by AC Milan as club misses out on Champions League
Swiatek cruises into second round in Paris as Svitolina huffs and puffs
Apparent leg injury sidelines Inter Miami star Lionel Messi
