British number one Emma Raducanu was unable to capitalise on a one-set lead as her French Open debut ended with a defeat in the second round.
Raducanu, 19, lost 3-6 6-1 6-1 to Aliaksandra Sasnovich of Belarus.
The 12th seed was unable to take any of five break points in a pivotal third game in the decider, Sasnovich breaking in the next to enable her to win.
The US Open champion has lost in the second round in her two Grand Slams since the win in New York last year.
Raducanu's exit means there are no British women left in the singles draw, with Heather Watson and Harriet Dart losing in the first round.