Australian Open champion Sofia Kenin got through a three-set test in her first-round match at Roland Garros.
The fourth-seeded Kenin struggled a bit after a rain delay before the second set but emerged with a 6-4, 3-6, 6-3 victory in nearly two hours against 125th-ranked Liudmila Samsonova.
Liudmila is 0-3 in Grand Slam matches for her career.
Kenin made her first big breakthrough at a major tournament a year ago in Paris. She beat Serena Williams along the way to her fourth-round debut.
The 21-year-old Kenin this year became the youngest champion in Melbourne since Maria Sharapova was 20 in 2008.