Paris, May 30 -- British number one Katie Boulter was unable to cause a shock against American seventh seed Madison Keys as the nation's involvement in the French Open women's singles came to an end.
Boulter lost 6-1 6-3 to Australian Open champion Keys in the second round, with a lot of self-inflicted damage caused by nine double faults across her eight service games on Thursday.
"If you don't have a great serving day against someone like that, you're always under pressure," said Boulter, who was broken five times.
"I think almost every service game I hit a double-fault. Against someone of that calibre, you just can't afford to do that."
Boulter's exit came a few hours after fellow Briton Sonay Kartal was also knocked out.
Kartal, com...