World number one Iga Swiatek underlined why she is the overwhelming favourite by starting her French Open campaign with a quick win over Lesia Tsurenko.
Poland's Swiatek showed all her quality in a 6-2 6-0 victory that took just 54 minutes on Court Philippe Chatrier.
The 20-year-old, who won Roland Garros in 2020, extended her winning streak to 29 matches by beating the Ukrainian.
But four-time Grand Slam champion Naomi Osaka was beaten by Amanda Anisimova in a high quality first-round encounter.
American Anisimova, who ended Osaka's Australian Open title defence in January, won 7-5 6-4.