Cameron Norrie is the only British player left in the French Open singles after Johanna Konta and Heather Watson lost their first-round matches.
British women's number one Konta, seeded 19th, lost 7-6 (7-5) 6-2 to Romania's Sorana Cirstea.
Earlier, Watson also made a first-round exit with a straight-set defeat by Kazakhstan's Zarina Diyas.
Watson, yet to progress beyond the second round in Paris, lost 6-4 7-5 as she was unable to pick up her first tour-level win since the Australian Open in February.
In-form Norrie safely through
British number two Norrie will play South African Lloyd Harris or Italian 26th seed Lorenzo Sonego after seeing off qualifier Fratangelo.